日本プララド List of Products and Services

Next-generation remote bolt axial force monitoring system, Interbolt. You can know the bolt tightening axial force value in units of 1 kN! It measures the bolt axial force in real-time and automatically sends the data to a cloud server. With this IoT smart technology, you can monitor bolt loosening from anywhere in the cloud. It features an alert notification function that detects and notifies you of bolt loosening, helping to prevent equipment failures during operation. As a result, real-time bolt axial force data can be monitored from anywhere in the world using a computer or smartphone, eliminating the need for operators to be on-site. You can monitor the axial force measurement data from offshore wind power in Hokkaido at an office in Tokyo or even in an office in the United States. Interbolt is equipped with a high-precision bolt load sensor. The battery-operated wireless sensor also includes an LED that allows for easy visual confirmation of the bolt's axial force status. It utilizes LoRa wireless communication, eliminating the need for wiring work. <Remote detection and monitoring of bolt loosening with Interbolt> For inquiries regarding estimates or requests for materials, please contact us. Japan Pralado Co., Ltd. TEL: 078-967-3556

• Other measurement, recording and measuring instruments
• Other inspection equipment and devices
• Torque Meter

PLARAD Air Torque Wrench DP2 - Bolt tightening repeatability accuracy ±5% - Powerful torque of 8000Nm with a compact design due to maximum efficiency drive - Increased lifespan and durability with new pressure control and maintenance unit for continuous operation - 7 straight models and 7 L-type models = a total of 14 models - Tightening torque from 145Nm to 8,000Nm. - 360-degree rotating safety free joint structure that prevents hand twisting Flexible operation in tight spaces. - Automatic stop function at set torque. - Air-operated, suitable for explosion-proof areas in chemical plants. - No vibration or noise, ensuring quiet operation even during night work. - Precision air regulator set included as standard. <Contact for purchasing or renting air torque wrenches> Please contact us for free demos, quotes, and material requests. (Company) Japan Plarad TEL: 078-967-3556

• Torque wrench
• Air Tools
• Other work tools

A nut that can be tightened with "1/100 of a small torque" without using electricity or air. Even with an M100 bolt, only a tightening torque of 200Nm is required. It can be tightened with just one torque wrench. A nut that does not loosen due to a patented structure with a special sloped disc. ■ M30 bolt: 1/42 of the standard torque = required tightening torque 30Nm ■ M56 bolt: 1/107 of the standard torque = required tightening torque 80Nm ■ M100 bolt: 1/260 of the standard torque = required tightening torque 200Nm ■ Features of the tension nut When tightening large bolts from M30 to M100, the tightening torque can reach several thousand to tens of thousands of Nm, requiring large hydraulic or electric tools. The tension nut allows for easy tightening of large bolts using only a hand torque wrench by tightening the Hertz screw. There is no need for large tools or equipment anymore. ■ Tension nut that absolutely does not loosen (international patent obtained) The Plarado tension nut is ideal for machines with vibrations due to its anti-loosening effect. The special structure of the "sloped disc" generates higher axial force as the force acts in the reverse direction trying to loosen, further tightening the structure.

• nut

■ Completely prevents bolt rotation with the "Anti-Rotation Zero Friction Washer" Bolt sizes: Compatible with M12 to M72. International patent applied for. ■ Features of the Plarad Anti-Rotation Zero Friction Washer Prevents rotation of hex bolts. ■ Unlike washers that utilize the friction resistance of surface irregularities from knurled processing, the Zero Rotation Washer has a special structure that changes the equivalent friction diameter, ensuring that the bolt does not rotate. ■ By simply replacing standard flat washers, there is no need for cumbersome bolt anti-rotation tools or backup wrench tools, significantly reducing the time required for bolt tightening operations. Additionally, the bolt tightening task, which previously required two workers to hold the tightening tool and the anti-rotation tool, can now be done by one person, improving labor efficiency. - Strength classification: 8.8 - Material: S45C - Surface treatment: Trivalent chromate finish <For inquiries about the bolt anti-rotation zero friction washer> Please contact us for quotes or material requests. Plarad Co., Ltd. TEL: 078-967-3556

• bolt
• nut
• Assembly Jig

■ Structure and Non-Loosening Principle of the Strongest Lock Nut "Bolrock Nut" 1. When the nut is subjected to vibration and attempts to loosen counterclockwise, the fine internal balls utilize a clutch mechanism to exhibit a wedging effect, preventing the nut from turning and loosening. 2. The slope angle of the internal balls is designed to be larger than the "screw lead angle," which is the angle at which the screw rises one full turn. 3. When the nut is tightened, the internal balls automatically move to the deepest part of the groove, aligning the bottom of the nut with the top of the balls, eliminating any gap between them and the floor, thus not affecting the tightening axial force. ■ Vibration Test Condition Data - Bolt Diameter: M16 - Bolt and Nut Material: SCM435 - Frequency: 100Hz - Number of Vibrations: 1,000,000 times - Simultaneous 3D vibration in both vertical and horizontal directions While competitor lock nuts loosen after 1,100 to 2,300 vibrations, the Plarad Bolrock Nut withstands 1,000,000 vibrations, proving its overwhelming vibration resistance. <About the Strongest Lock Nut: Bolrock Nut> For inquiries such as requests for quotes or materials, please contact us. (Company) Nippon Plarad TEL: 078-967-3556

• nut
• bolt
• Other work tools

High-speed hydraulic pump for hydraulic torque wrenches with a large discharge volume. The Plarad hydraulic torque wrench can be operated in automatic/manual mode. Comes with three 5.2Ah lithium-ion batteries and a 100V charger. High pressure maximum discharge volume at 80MPa = 1L/min, ultra-lightweight at 8kg (10kg with battery). Equipped with a wireless remote control. Other manufacturers' pumps weigh around 30kg, so "Plarad is 1/3 the weight and 2 to 4 times faster." It can drive large hydraulic torque wrenches with a large discharge volume. Digital type allows detailed settings in units of 0.1MPa and 1Bar. For bolt tightening work in wind power generation, there is no need for long extension cord reels from the generator or power source. There is also no concern about voltage drop due to extension cords like traditional hydraulic pumps. The Plarad pump is very light and can be held with one hand. The new cordless hydraulic pump XA1 power significantly reduces working time. <Contact for inquiries about cordless hydraulic pumps (battery-operated)> For quotes, document requests, etc., please contact us. (Company) Japan Plarad TEL: 078-967-3556

• Other pumps
• Hydraulic Equipment
• Torque wrench

Cordless Electric Torque Wrench VDA for Railway Rail Bolt Tightening (Battery Operated) - VDA-05 Maximum Tightening Torque 550Nm - VDA-05TC Maximum Tightening Torque 550Nm (Model with Torque Meter TC1 that can save bolt tightening data) - HDA-30 Maximum Tightening Torque 3600Nm Torque setting in 45-60 stages. Automatic stop at set torque. Repeated tightening accuracy ±4% (High precision torque management) Torque Meter TC1 - Accurately measures tightening torque in "1Nm units." - Built-in high-precision torque sensor with LED display - Can measure both clockwise and counterclockwise rotations. - Bolt tightening data can be saved and managed on a PC. Torque management tool for tightening railway sleeper bolts (for rail fastening spring). Cordless electric torque wrench with specially designed frame. Torque tightening operation can be performed at the handle, allowing work without squatting. High-precision torque tightening device for railway maintenance. Japan Plarad Co., Ltd. TEL: 078-967-3556

• Power tools
• Torque wrench
• Other work tools

Electric wrench for gate valves. It easily solves the labor-intensive task of manually opening and closing large valve handles (valve opening operations) for gate valves and butterfly valves in water treatment facilities, pump stations, oil refineries, and factory plants. The cordless electric wrench for gate valves is a specialized tool that allows for easy rotation of valve handles without the need for a power source. We also manufacture special reaction force receivers and dedicated tip adapters to match the shape of your gate valves. An optional offset gear is available to accommodate the opening and closing of valve handles with long protruding valve stems. - Overwhelming high speed with a rotation speed of 99 rpm! - High-speed rotational power achieved with the adoption of a "4-stage switching gear." - "Silent 75dB" with no vibrations or noise. - Comes with one 100V charger and two large-capacity batteries. - DA2motion-05 output torque: 90Nm to 550Nm, rotation speed: 99rpm - DA2motion-10 output torque: 120Nm to 1000Nm, rotation speed: 63rpm <For purchase or rental inquiries> Please contact us for free demos, estimates, and information requests. Nihon Purarado Co., Ltd. TEL: 078-967-3556

• Power tools
• Torque wrench
• Other work tools

- Rental machines shipped nationwide on the same day! Rentals available from 4 days (minimum guaranteed rental period). - Industry's fastest speed (*for battery-powered electric torque wrenches over 500Nm) with an ultra-high-speed rotation of 71.6 rpm! (PL2-05STCL) Tightening large bolts quickly while managing torque. - Overwhelming high power! Despite being a rechargeable electric torque wrench, it boasts a maximum tightening torque of 3840Nm (the sales machine is 8000Nm). - Five rental models available: torque range from 200Nm to 3,840Nm. - Newly designed 360-degree rotating safety free joint structure. - Speed with 4-stage switching gear for a wide torque range. - Torque settings available in 45 and 60 stages. - Bolt tightening repeat accuracy of ±4%. - Automatic stop function at set torque. - No vibrations or noise, ensuring quiet operation at 75dB even during nighttime work. - Effective for tightening wheel nuts on large trucks. - Comes with one dedicated charger and two batteries. (Charger conveniently operates on 100V) - Additionally, hydraulic torque wrenches, air torque wrenches, and bolt tensioners are available for purchase and rental.

• Torque wrench
• Power tools
• Other work tools

- It can be used in narrow spaces and areas with height restrictions due to its compact L-shaped design. - A total of 6 models are available, with torque ranging from 170Nm to 8000Nm. - Torque settings are available in 99 levels. - Repeated tightening torque accuracy is ±5% for torque management. - Automatic stop function at the set value. - Designed for quiet operation with no vibrations or noise, ensuring safety during nighttime work at 79dB. - Automatic protection function with a motor temperature sensor. - The body features a "safety free joint structure" that rotates 360 degrees, allowing for safe operation without twisting at the hands due to reaction force.

• Torque wrench
• Power tools
• Other work tools

It can be used in narrow spaces and with height restrictions due to its compact L-shaped design. Automatic bolt tightening from the initial tightening torque to the set angle. Achieves high-precision rotational angle management for tightening. A total of 6 models are available, with tightening torques ranging from 170Nm to 8000Nm. DE1-20ST-L docu plus angle torque wrench 2000Nm DE1-30ST-L docu plus angle torque wrench 3000Nm DE1-36ST-L docu plus angle torque wrench 3600Nm DE1-48ST-L docu plus angle torque wrench 4800Nm DE1-80ST-L docu plus angle torque wrench 8000Nm - High-precision bolt tightening is possible with "torque management," "angle management," and "torque management + angle management." - Torque setting has 99 levels. - Angle setting from 0 to 999°. - Repeated tightening torque accuracy ±5%. - Rotational angle accuracy ±5%. - Automatic stop function at set values. - Quiet design with no vibrations or noise, ensuring safety during nighttime work at 79dB. - The main body rotates 360 degrees due to the "safety free joint structure," allowing safe work without twisting at the hands from reaction forces.

• Torque wrench
• Power tools
• Other work tools

"Torque management," "angle management," and "torque management + angle management" settings enable high-precision tightening of rotational angles. Automatic bolt tightening from the initial tightening torque to the set angle for large bolts. There is no need to use two separate tools: an initial tightening torque wrench and a rotational angle wrench! This single unit automatically tightens with "torque management + angle management," reducing work time. A total of six models are available, with tightening torques ranging from 170Nm to 8000Nm. DE1-20ST docu plus angle torque wrench 2000Nm DE1-30ST docu plus angle torque wrench 3000Nm DE1-36ST docu plus angle torque wrench 3600Nm DE1-48ST docu plus angle torque wrench 4800Nm DE1-80ST docu plus angle torque wrench 8000Nm - Torque setting with 99 levels. - Rotational angle setting from 0 to 999°. - Tightening repeat torque accuracy ±5%. - Rotational angle accuracy ±5%. - Automatic stop function at set values. - The main unit rotates 360 degrees, utilizing a "safety free joint structure," allowing for safe operation without twisting at the hand due to reaction forces.

• Torque wrench
• Power tools
• Other work tools

- A total of 6 models: Torque range from 170Nm to 8,000Nm. - Capable of storing up to 10,000 bolt tightening data and importing it to a PC. - Torque setting with 99 levels. - Bolt tightening repeat accuracy of ±5%. - The handle rotates 360 degrees with a "safe free joint structure," preventing twisting or pinching at the hand. - Automatic stop at the set torque. Easy automatic tightening by simply pulling the trigger. - When the set torque is reached, the residual torque release function prevents galling on the bolt. - Re-tightening of bolts (two-stage tightening) is also possible. - No vibrations or noise like an impact wrench, ensuring a quiet design suitable for nighttime work. - Automatic protection function with motor temperature sensor. - New LED digital display. - Other models include an electric torque wrench with torque management + angle management that can automatically tighten from "0 to 999 degrees," as well as "L-type models" and 12 other models. Please feel free to contact us.

• Torque wrench
• Power tools
• Other work tools

● Fixed with a stop screw, it won't fall even when facing down, allowing for hands-free operation! It effectively prevents large bolts from turning together. Since it's hands-free, "tasks that previously required two people can now be done safely by one person." ● Easily removable with just a hex wrench. It won't get stuck. ● One unit accommodates two sizes of nut across dimensions. ● No sparks are generated, making it usable in explosion-proof areas. ● Backup wrenches are large and heavy. Impact wrenches may not fit into narrow bolt spaces and pose a risk of pinching fingers during work. This anti-rotation stopper allows for compact and safe operation. Custom sizes and inch sizes can also be manufactured. ● Comes with a fall prevention wire and shackle.

• Spanners and wrenches
• Other work tools

- Plarado's digital automatic hydraulic pump has added new features that allow it to save data on bolt tightening torque values and import it to a PC via USB memory. - This automatic pump enables ultra-high precision torque management, allowing the bolt tightening torque to be set in "1Nm increments" using an LCD touch panel. - Instead of displaying pressure, it shows torque (Nm) for each individual serial number of the connected hydraulic torque wrench. - The pump automatically tightens bolts and stops when the set torque is reached, allowing for continuous operation at high speed without interruptions. - All manufacturers' 70MPa pumps have analog hydraulic gauges with a pressure increment of 2MPa. Therefore, the torque conversion tables for hydraulic torque wrenches, which serve as benchmarks, are only issued in torque values of 2MPa increments. Currently, users either set the hydraulic value based on an approximate torque they want for large bolts or ambiguously set it at half of the 1MPa increment by eye. [Plarado eliminates this ambiguity and leads the industry in achieving more accurate torque management.] <Contact for inquiries about the automatic hydraulic pump> Please contact us for free demos, estimates, and requests for materials. (Plarado Co., Ltd.) TEL: 078-967-3556

• Torque wrench
• Other pumps
• Hydraulic Equipment

Pralado cordless electric torque wrench, electric torque wrench, air torque wrench attachment options. - Accurately measures tightening torque in "1Nm increments." - Measurement range: 110Nm to 5500Nm across 3 models. - Built-in high-precision torque sensor with LED display. - Capable of measuring both clockwise and counterclockwise rotations. - Bolt tightening data can be saved and managed on a PC. - No connection cables required. - Operates with a rechargeable battery.

• Torque Meter
• Torque wrench
• Power tools

- Plarad Electric Torque Wrench - Industry's fastest speed (*for battery-powered electric torque wrenches over 500Nm) - Overwhelming high speed with a rotation speed of 71.6 rpm! - Adoption of a "4-stage switching gear" enables high-speed tightening and a wide torque range. (Several times faster tightening speed compared to competitors with only 1-2 stage switching) DA2-10STCL Torque Wrench 1000Nm DA2-20STCL Torque Wrench 2000Nm DA2-30STCL Torque Wrench 3000Nm DA2-36STCL Torque Wrench 3600Nm DA2-48STCL Torque Wrench 4800Nm DA2-80STCL Torque Wrench 8000Nm - Torque management for large bolt tightening. - Bolt tightening repeat accuracy ±4% - Automatically stops at the set torque and notifies with a beep sound. - 360-degree rotating safety free joint structure. - Comes with one 100V charger and two batteries. <For inquiries about purchasing or renting electric torque wrenches> Please contact us for free demos, quotes, and material requests. (Company) Japan Plarad TEL: 078-967-3556

• Torque wrench
• Power tools
• Other work tools

The world's first dual automatic hydraulic pump can be used for both "hydraulic torque wrench 80MPa" and "bolt tensioner 150MPa." There is no longer a need to have two separate hydraulic pumps! It features high discharge capacity and automatic operation for ultra-high speed. The pinnacle of Plarado hydraulic pumps equipped with cutting-edge technology. Voltage specifications: 200V three-phase, 230V single-phase.

• Hydraulic Equipment
• Power tools
• Other pumps

■ No need for electric or air power sources! No pumps or hoses required. Easily tighten large bolts with just a hex wrench. ■ Tightening work is done simply by turning the hex wrench. ■ Bolt sizes: M20 to M140 ■ Maximum tightening axial force: 254 kN. ■ Since the bolts are pulled tight, it does not damage the surface of the flange or the seating surface of the nut. ■ The maximum operating temperature of the product is up to 100°C. ■ For holding the rotating shaft of cutting machine slitter lines and side trimmers, as well as for replacing and aligning circular saw blades of friction saw blades, and for large bolt tightening and loosening tasks for scrap choppers, roll forming lines, and gear cutting machines (hobbing machines), it can be done easily and instantly.

• Hydraulic Equipment
• Other work tools
• nut

Plarado is a manufacturer specializing in hydraulic torque wrenches, boasting the oldest history and tradition in the world (Since 1962). All designs and manufacturing of hydraulic torque wrenches began with Plarado. We manufacture hydraulic torque wrenches based on numerous patents and research and development. We offer 18 models with a tightening torque range of 50Nm to 65,000Nm. Torque accuracy: ±3%, high-precision torque management tools. (1) The industry's only 9-piece drive claw and ultra-precision spline gear structure that prevents gear jamming. ±3% high-precision torque management. (2) Patent structure: The industry's only hydraulic wrench body with a high-pressure safety double structure. (3) Patent structure: Spherical bearing lever piston system. A structure where the piston and lever block automatically separate and reconnect, which is not available in other companies. (4) Industry No.1 wide torque range. The minimum to maximum torque ratio is 10 times! (5) The housing is made of aerospace-grade aluminum alloy in an integrated structure, lightweight and highly rigid. (6) High-precision torque management tools for large bolt tightening in the M20 to M130 class. <For inquiries about purchasing or renting hydraulic torque wrenches> Please contact us for free demonstrations, estimates, and material requests. Plarado Co., Ltd. TEL: 078-967-3556

• Torque wrench
• Other work tools
• Hydraulic Equipment

○ Compact and palm-sized, weighing only 1.8kg with a tightening torque of 1000Nm. No need for a 1.5m long torque wrench anymore. ○ The hydraulic torque wrench PET type is a single-acting model, requiring only one hydraulic hose for connection, making it very easy to handle, small, and lightweight. ○ The hydraulic wrench with easy handling and a single hydraulic hose connection is exclusive to Plarad. ○ Custom manufacturing of a special version with the hydraulic hose equipped at the back is also possible. ○ There are a total of 18 models available, including a double-acting type (with two hose connections). <For inquiries about purchasing or renting hydraulic torque wrenches> Please contact us for free demonstrations, estimates, and material requests. (Company) Japan Plarad TEL: 078-967-3556

• Torque wrench
• Other work tools
• Hydraulic Equipment

World's largest torque: 143 models of hydraulic torque wrenches with a torque of 150,000 Nm. Plarad boasts the oldest history among hydraulic torque wrench manufacturers (Since 1962). All hydraulic torque wrench manufacturing started with Plarad. Awarded the TOP 100 Innovator Award. Hydraulic wrench with center hole type (sockets). Tightening torque: from 80 Nm to 45,000 Nm. Torque accuracy: ±3% high precision torque management. The slim body excels in tightening bolts in narrow spaces. Achievements in bolt tightening for the Tokyo Skytree. Patent structure: The only one in the industry, the hydraulic wrench body has a high-pressure safety double structure. Patent structure: spherical bearing lever piston system. A structure where the piston and lever block automatically separate and reconnect, which is not found in other companies. Also effective for tightening long protruding anchor bolts and double nuts. Hydraulic torque wrenches make tightening large bolts of M100 class easy, with remote control allowing tightening with just one finger! <For inquiries about purchasing or renting hydraulic torque wrenches> Please contact us for free demos, quotes, and material requests. (Company) Japan Plarad TEL: 078-967-3556

• Torque wrench
• Other work tools
• Hydraulic Equipment

- High-speed tightening torque management tool. - Tightening torque range: 135Nm to 3600Nm. - The handle rotates 360 degrees with a "safe free joint structure," preventing twisting or pinching at the hands for safety. - Smaller and 20% lighter than conventional air torque wrenches. - Operates in explosion-proof areas of chemical plants with its air-powered design. - No vibrations or noise like impact wrenches, ensuring quiet operation at "73dB" for nighttime work. - Automatic stop function at the set torque. - Bolt tightening repeat accuracy of ±5%. - Comes standard with a precision air regulator set. Achieves approximately 30 times the speed of hydraulic torque wrenches in bolt tightening. <Contact for purchasing or renting air torque wrenches> Please contact us for free demos, quotes, and information requests. (Company) Nippon Plarad, TEL: 078-967-3556

• Torque wrench
• Air Tools
• Other work tools

- A super lightweight power wrench with a lever mechanism that amplifies small input torque to deliver a maximum torque of 10,000 Nm. - The gear ratio has been reduced compared to conventional models, speeding up work! - The planetary gear structure makes the entire unit compact and lightweight. - The position of the reaction point can be adjusted flexibly. - Even during difficult downward bolt tightening tasks, the wrench does not fall, allowing for easy operation. This is due to the "reverse stop mechanism" that applies tension between the reaction point and the bolt (except for PL170G). - Ultra-lightweight duralumin reaction point. - Weighs only 2.6 kg for the 1,700 Nm class! - Even in the 10,000 Nm class, it weighs just 16 kg! - A total of 8 models = torque range from 220 Nm to 10,100 Nm. - Comes with a torque calibration certificate, instruction manual, and a dedicated case. - When used in combination with an input-only torque wrench, it achieves a high tightening accuracy of ±5%.

• Torque wrench
• Other work tools
• Spanners and wrenches

- Supports large bolt tightening from M20 to M300. (Custom production possible from M16.) - Multiple bolts can be tightened simultaneously and uniformly in parallel by connecting bolt tensioners. The tightening axial force is uniform, preventing uneven tightening of flanges. (There is a record of simultaneously tightening 40 flange bolts in parallel.) - Bolts are pulled using hydraulic force, applying tensile load for tightening, which eliminates the influence of friction with the thread surface and seating surface. "Axial force can be managed directly," allowing for more accurate tightening through axial force management than torque management. - Features our unique ArmorMax protection with a super-hard surface finish. Excellent durability, wear resistance, and corrosion resistance maximize the lifespan of the tool. - The compact and lightweight bolt tensioner allows for bolt tightening even in confined spaces. Custom production is also possible. - Since the bolts are not twisted, there is no generation of friction heat, preventing galling between the nut and flange surface and seizing of the threaded parts. <For inquiries about purchasing or renting bolt tensioners> Please contact us for free demos, quotes, and material requests. Nihon Purarado Co., Ltd. TEL: 078-967-3556

• Other work tools
• Torque wrench
• Hydraulic Equipment

■ Equipped with an automatic return spring to prevent forgetting to reset to zero, ensuring safety and improving work efficiency by eliminating the need to return the puller to zero stroke each time. ■ The two-stage piston design makes the main body slim, suitable for tightening bolts in narrow spaces, and delivers high tension for tightening force. ■ The gearbox is designed for quick nut seating with a ratchet wrench. ■ Long lifespan, designed for a minimum of over 10,000 pressure cycles. ■ The drive socket features a spring-loaded snap-down structure for quick installation onto the nut. ■ No alignment is needed when attaching to the nut. ■ A tightening tool for axial force suitable for narrow space blade bolt tightening, nacelle frame bolts, hub bolts, and foundation anchor bolts for offshore and onshore wind power construction. ■ Also effective for tightening large bolts from M24 to M64 for applications other than wind power. <For inquiries regarding the purchase or rental of bolt tensioners> Please contact us for free demos, quotes, and material requests. Nihon Purarado Co., Ltd. TEL: 078-967-3556

• Other work tools
• Torque wrench
• Hydraulic Equipment

■ The sub-sea type bolt tensioner features a split puller nut that clamps the bolt, allowing for easy installation even in underwater bolt tightening with long protrusions, significantly reducing the time required for bolt tightening work! (Especially effective for long anchor bolts and foundation bolt tightening.) ■ It reduces diver's working time for challenging large bolt tightening tasks underwater. ■ Nickel-plated coating to prevent rust. ■ Multiple bolts can be tightened simultaneously (parallel tightening) by connecting tensioners. ■ Hydraulic specification of 150 MPa, with a maximum pull stroke of 30 mm per operation. ■ It is also highly effective for bolt tightening tasks with long protrusions, beyond underwater bolt tightening work.

• Other work tools
• Torque wrench
• Hydraulic Equipment

■ The hydraulic nut can tighten 40 flange bolts simultaneously at once! ■ The hydraulic nut is a revolutionary nut that tightens bolts by pulling them with the hydraulic function of the nut body! The nut itself tightens the bolt. ■ Since the nut is tightened by pulling force without twisting, there is no frictional influence with the seating surface, allowing for precise application of axial force directly to the bolt. ■ It tightens multiple bolts simultaneously and uniformly, preventing variation. ■ Because it pulls and tightens the bolt hydraulically, it does not damage the surface of the flange or the seating surface of the nut. ■ Tightening through axial force management achieves higher precision than torque management due to the absence of frictional influence. ■ It accommodates large bolt tightening from M20 to M300 class. ■ There is also a stainless steel version of the hydraulic nut with anti-corrosion specifications. <For inquiries about purchasing hydraulic nuts> Please contact us for free demos, quotes, and requests for materials. Nihon Purarado Co., Ltd. TEL: 078-967-3556

• Hydraulic Equipment
• Other work tools
• nut

If you are looking for large bolt tightening tools for M20 to M130, trust the hydraulic torque wrench specialist manufacturer for reliable rentals! At Pralado, dedicated staff will assist you in selecting the right model and provide technical support. Calibration certificates and traceability are included. We have a wide stock of large bolt tightening tools available for same-day shipping nationwide. Pralado's hydraulic torque wrenches make it easy to tighten large bolts in the M100 class, allowing operation with just one finger using a remote control! They can handle tightening torques from 100Nm to 65,000Nm. We offer 174 models of high-precision torque management tools! Pralado is a long-established manufacturer of hydraulic torque wrenches, boasting the oldest history and tradition in the world. The output torque accuracy of our hydraulic torque wrenches is ±3%, ensuring high-precision torque management. Our wrenches are slim and can tighten bolts even in narrow spaces. They have been used for large bolt tightening in projects like the Tokyo Skytree and Abeno Harukas. Additionally, we offer electric torque wrenches, air torque wrenches, and bolt tensioners for purchase and rental. <For inquiries about purchasing or renting hydraulic torque wrenches> Please contact us for free demonstrations, quotes, and document requests. Nihon Pralado Co., Ltd. TEL: 078-967-3556

• Torque wrench
• Other work tools
• Hydraulic Equipment

■ Electric hydraulic pump for hydraulic torque wrenches Maximum oil pressure 70Mpa, maximum discharge rate: 5.0L/min, high discharge rate with high speed. It significantly reduces the time required for large bolt fastening tasks with the connected hydraulic torque wrench. ■ Electric 100V hydraulic pump with standard cooler. The oil temperature rise is effectively controlled by the oil cooler, ensuring no concerns about overheating or pressure drop even during prolonged use. ■ Fully demonstrates high-pressure performance with a maximum oil pressure specification of 70Mpa. The hydraulic pump features an automatic two-stage switching between high and low pressure, improving work efficiency. ■ Equipped with a one-touch high-pressure hydraulic coupler. A quick coupler that allows for one-handed attachment and detachment even while wearing gloves. Additionally, it prioritizes the safety of the operator with a safety lock mechanism, eliminating the risk of the hydraulic hose suddenly disconnecting. ■ The main body is equipped with a high-strength frame that protects the pump and hydraulic meter, and it can also be suspended with a wire during transportation for convenient portability during high-altitude work.

• Other work tools
• Torque wrench
• Hydraulic Equipment

■ The compact electric hydraulic pump does not have to worry about overheating or pressure drop even during long hours of operation. When connected to a hydraulic torque wrench, the oil temperature drops by about 10 to 20°C compared to conventional models during one hour of continuous operation. ■ The only hydraulic pump in the industry with a cooler as standard equipment is the Plarado model with a compact 100V design. ■ There are also various types available, including air-operated hydraulic pumps, electric hydraulic pumps (turbo type), and automatic hydraulic pumps. ■ The best-selling standard electric hydraulic pump is equipped with a cooler.

• Hydraulic Equipment
• Other pumps
• Other work tools

■Sales of large torque testing machines and torque calibration inspection services for tools. Measuring target equipment: hydraulic torque wrenches, nut runners, electric torque wrenches. ■This is the latest torque testing machine jointly developed by Plarad and the German Mechanical Engineering Association under the guidance of RWTH Aachen University. ■It is equipped with a self-calibration function that allows for verification and correction of its own accuracy. ■The torque testing machine that can graph measurement values is the only one of its kind in the country.

• Other machine tools
• Hydraulic Equipment
• Testing Equipment and Devices