三井精機工業 Product Lineup

This is the "Machine Tools and Compressors Comprehensive Catalog" from Mitsui Seiki Kogyo Co., Ltd., a company with a long history that has produced numerous "standards" such as parent screws and standard scales, which serve as positioning references, starting from measuring instruments. It features various products, including the "Manning Center, Jig Boring Machine, Jig Grinding Machine, and Screw Grinding Machine," which achieve extremely high precision through thorough manufacturing of key components, as well as high-efficiency oil-free compressors that are environmentally friendly and energy-saving. [Featured Products] - Horizontal Machining Center - 5-Axis Controlled Horizontal Machining Center (Table on Table) (Trunnion) - Vertical Machining Center - Water-Lubricated Oil-Free Compressor, and many more For more details, please contact us or download the catalog.

• Machining Center

We are pleased to offer a free document titled "Is Your Company Eco-Friendly?" from Mitsui Seiki Kogyo, which specializes in compressors boasting excellent compression structures. Since compressors account for 20-30% of a factory's power consumption, reducing compressor power usage is a more effective way to save energy. This document introduces knowledge that can help you consider energy savings and cost reduction, using diagrams and Q&A. We encourage you to read it. [Contents] ■ A New Era of Compressor Styles! ■ Case Study of Company A's Compressor Installation ■ Energy Saving Methods *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines

Mitsui Seiki Kogyo, known for its excellent compression structures, is offering a free document titled "What if the oil in your car was water?" If engines were water-lubricated, it would be environmentally ideal, but with current technology, cars cannot run on water. However, compressors can be water-lubricated. This document provides tips on energy conservation using charts and diagrams. We encourage you to take a look. [Contents] ■ Comparing to car oil changes… ■ Compressors can be water-lubricated *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines

This catalog features the 5-axis machining center series '5-AXIS' handled by Mitsui Seiki. It includes a trunnion-type (horizontal) capable of high-efficiency machining of difficult-to-cut materials, as well as spindle-tilt type (horizontal) and trunnion-type (vertical) models in the lineup. Due to the variety of models, precision, efficiency, and usability, our 5-axis machining centers have received high praise from customers. [Contents] ■ Aircraft parts machining ■ Automotive parts machining ■ Power generation-related parts ■ Semiconductor manufacturing equipment parts machining ■ Mold machining ■ Functions supporting 5-axis machining *For more details, please refer to the PDF document or feel free to contact us.

• Machining Center

The "Jidic H5E/H6E" is a horizontal CNC jig borer that efficiently handles everything from machining center operations to ultra-precision finishing processes for jig boring, all in one machine. Each linear axis (XYZ) adopts a V-V type guide similar to that used in ultra-precision machining machines and measuring instruments, which require particularly high precision. The spindle is supported by four sets of precision ceramic bearings, minimizing runout and achieving smooth rotation. The maximum machining capacity for the X×Y×Z axes is available in the "H5E" model with dimensions of 850×700×750 and the "H6E" model with dimensions of 1,300×900×900. 【Features】 ■ Static accuracy ■ Static stability ■ Dynamic accuracy ■ Dynamic stability ■ Thermal stability *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines

The "HPX63II" is a new horizontal machining center that inherits the features of the widely appreciated "HPX63" and has undergone minor changes. In addition to the precision achieved through scraping, it employs axial cooling for ball screws on all axes, enhancing thermal management, and features dual-axis spindle constraint as standard. To handle the large amounts of chips generated by high-efficiency machining and to accommodate various coolant supply methods, we offer suitable coolant systems tailored to specific applications. 【Features】 ■ High precision achieved through scraping ■ Stable feed mechanism ■ Machining accuracy for turn boring ■ Dual-axis spindle constraint added as standard specification ■ Heavy cutting capability for difficult-to-machine materials *For more details, please refer to the PDF document or feel free to contact us.

• Machining Center

The "HU50A" is a horizontal machining center that achieves long-term precision maintenance and high rigidity by adopting square guides. The square guides, which have undergone heat treatment, are mounted on surfaces that have been processed for straightness and squareness through scraping. Additionally, the column sliding section employs air support to reduce load, allowing for smooth high-speed feed despite the sliding surface being of a sliding type. It features an extremely rigid three-point support bed that is integrated. 【Features】 - Geometric precision such as parallelism, squareness, and straightness is extremely high and maintained over a long period. - A high-precision glass scale from Heidenhain is included as standard on the linear axes. - Minimizes heat generation and contributes to the lifespan and accuracy improvement of the ball screws. - High-precision pallet clamping mechanism. *For more details, please refer to the PDF document or feel free to contact us.

• Machining Center

The "HU63EX" is a horizontal machining center that has achieved a step accuracy of within 3μm while processing 10 continuous workpieces. With sufficient wall thickness and an ideal rib arrangement, it has high rigidity, resulting in minimal changes in machine accuracy even with slight variations in the foundation level. The ball screws driving the XYZ axes are positioned at the center of each sliding surface, preventing uneven loading and achieving smooth feeding. 【Features】 ■ High rigidity three-point supported bed ■ Ball screw drive position that ensures stable feeding ■ Air support ■ Achieved step accuracy of within 3μm while processing 10 continuous workpieces ■ Standard equipped with spindle dual face contact (Big Plus) specification ■ Tool clamp with a force amplification mechanism *For more details, please refer to the PDF document or feel free to contact us.

• Machining Center

The "HU80EX" is a horizontal machining center that has achieved hole position accuracy within 5μm after processing 10 continuous workpieces. It features angular guides for long-term precision maintenance and high rigidity. It adopts a highly rigid three-point support bed with a Y-shaped integrated design. The ball screws for all axes are positioned at the center of the sliding surfaces, minimizing posture differences. 【Features】 ■ High rigidity three-point support bed ■ Linear scales are standard on the X, Y, and Z axes ■ High-precision in-house manufactured B-axis table ■ Ball screw drive positions that ensure stable feed ■ Air support *For more details, please refer to the PDF document or feel free to contact us.

• Machining Center

The "HU100 series" is a modular-type horizontal machining center. Based on X-axis strokes of 1300, 1600, and 2000, it is possible to customize the machine with suitable strokes for the desired work size by also selecting extensions for the Y-axis and Z-axis. There is a wide variety of modules available, including spindle, ATC, and APC. Despite being a large machine, it achieves high precision comparable to medium-sized machines due to its high-rigidity basic structure, thorough craftsmanship, and full closed-loop control. 【Features】 ■ Flexible customization ■ High precision ■ High rigidity ■ Good operability *For more details, please refer to the PDF materials or feel free to contact us.

• Machining Center

The "J350G" is a jig grinding machine capable of continuously and automatically processing holes of different diameters with a single grinding wheel. It achieves an automatic grinding stroke (U-axis) of -3 to +50mm. Additionally, it comes standard with a full cover designed with operability in mind. By simply inputting the necessary data, it can automatically generate a differential search processing program. 【Features】 ■ Achieves a wide range of automatic grinding strokes ■ Standard full cover designed for operability ■ Compact installation space ■ Adoption of high-precision scales ■ Control panel focused on manual operation *For more details, please refer to the PDF materials or feel free to contact us.

• Other processing machines

In addition to the gate-shaped symmetry structure that takes thermal deformation into account, the displacement amount in the Z-axis has been improved to about one-third of the conventional value due to the newly developed main axis thermal displacement correction function. The distance between the main axis center and the Z-axis drive unit has been minimized, resulting in improved Z-axis rigidity. 【Features】 ■ Cooling of various parts to suppress heat generation ■ The mechanical structure is a completely symmetrical structure ■ High followability achieved with corner slides ■ Head configuration driven by the center of gravity ■ Stable high precision over an extended period *For more details, please refer to the PDF materials or feel free to contact us.

• Other processing machines

The "Vertex55III/55XIII" is a vertical machining center equipped with a high-performance spindle thermal displacement compensation function, improving the Z-axis displacement amount to one-third of the previous level. With enhanced bed and column rigidity, the surface quality of three-dimensional shapes using micro linear feed has improved. Additionally, we offer an optional 15" color LCD control panel equipped with Human-Machine Interface (HMI) functionality. We have a lineup of the model-changed 3-axis "Vertex55 III" and the 5-axis "Vertex55X III." 【Features】 ■ High precision indexing and repeatability ■ Roundness of tapered cone machining ■ Added temperature sensors for instant detection and correction of temperature changes ■ Reduced time until Z-axis displacement stabilizes ■ Spindles with selectable precision and strength according to processing needs ■ Compact body *For more details, please refer to the PDF materials or feel free to contact us.

• Machining Center

The "Vertex75III/75XIII" is a vertical machining center equipped with a high-performance spindle thermal displacement compensation function, improving the Z-axis displacement amount to one-third of the previous level. With enhanced bed and column rigidity, the surface quality of three-dimensional shapes using micro linear feed has improved. Additionally, an operation panel with a 15-color LCD featuring a human interface (HMI) function is available as an option. We offer a lineup of the 3-axis "Vertex75III" and the 5-axis "75XIII." 【Features】 ■ High precision indexing and repeatability ■ Additional temperature sensor ■ Instant detection and compensation for temperature changes ■ Reduced time until Z-axis displacement stabilizes ■ Displacement amount is approximately one-third of the previous level ■ Compact body *For more details, please refer to the PDF document or feel free to contact us.

• Machining Center

The "VU50A" is a vertical machining center that achieves high speed and high precision. The spindle end face is equipped with a standard two-face constraint "BIG Plus." This maintains stable tool mounting accuracy during high-speed spindle rotation. To enhance rigidity, the bed and saddle are thickened, with a height of 1000mm from the floor to the top of the bed. Additionally, the increased height facilitates easier chip removal. 【Features】 ■ Rapid feed rate of 36m/min (X-axis, Y-axis) reduces non-cutting time ■ Adopts a wide working area table (1,100×580mm) ■ Finished, assembled, and adjusted by skilled technicians with know-how in mother machine production, supporting precision ■ The wide width of the bed and sliding surfaces results in an extremely low overhang structure *For more details, please refer to the PDF document or feel free to contact us.

• Machining Center

The "VU65A" is a vertical machining center that achieves high precision pitch accuracy even with large workpieces. It features two sub-guides outside the main guide, maintaining the fundamentals of narrow guides while enabling high-precision movement without overhang. Air pockets are provided in the sliding parts of the X and Y axes, allowing compressed air to pass through, which reduces load and enables smooth feeding while maintaining rigidity. 【Features】 ■ Adoption of square guides for long-term precision maintenance and high rigidity ■ Four guides on the Y-axis ■ No overhang when the X-axis moves to the stroke end ■ The spindle is a standard high-rigidity gear-driven 50T at 6,000 min-1 (options available for 50T at 12,000 min-1 and 40T at 20,000 min-1) *For more details, please refer to the PDF document or feel free to contact us.

• Machining Center

We would like to introduce the "Jig Grinding Machine" handled by Mitsui Seiki Kogyo. The sliding surfaces of the X and Y axes are equipped with precision needle rollers on finely finished surfaces, achieving high straightness and accommodating fine feed. The lineup includes the "J3GEN," which employs a linear motor for Z-axis drive, as well as the "J300G" and "J4GDN." Additionally, the grinding head comes standard with a high-frequency motor (low-speed/high-speed), and various motors are available as options. 【Features】 ■ Achieves high geometric accuracy ■ Uses carefully selected castings ■ Hole pitch accuracy: ±1.5μm ■ Realizes high-precision hole processing ■ Automation features that support unmanned and labor-saving grinding processes *For more details, please refer to the PDF materials or feel free to contact us.

• Other processing machines

This catalog features a wide range of products from Mitsui Seiki Kogyo, including the "Precision Screw Grinding Machine Series." Starting with the "Precision Male Screw Grinding Machine," which can process using CBN grinding wheels, the lineup also includes the "Screw Heavy Grinding Machine" and the "Laser Screw Lead Measuring Machine." Our screw grinding machines cater to various types of screws, including ball screws, worms, screw gauges, and injection screws. [Featured Products] ■ Precision Male Screw Grinding Machine / Precision Female Screw Grinding Machine ■ Screw Heavy Grinding Machine ■ High-Precision Screw Rotor Grinding Machine ■ Large Nut Grinding Machine ■ Drum Screw Grinding Machine ■ Laser Screw Lead Measuring Machine *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines

This product is a receiver tank equipped with a safety valve, pressure gauge, and drain valve. With a clean air system, various filters can be selected according to the required air cleanliness, providing clean compressed air. Special options such as medium pressure (1.37MPa) specifications, low pressure increase specifications, and cold region specifications are also available. 【Specifications】 ■Material: SS400・SM490A ■Standard accessories: Safety valve, pressure gauge, drain valve ■Exterior paint color: Munsell 7.5Y7/1 (approximate) ■Accompanying documents: Type II pressure vessel specification sheet *For more details, please refer to the PDF materials or feel free to contact us.

• tank

The inverter compressor basic type (7.5 to 15 kW) is the ultimate energy-saving, high-efficiency, and environmentally friendly compressor. With a maximum class air discharge volume, it creates a quiet environment. Direct drive significantly reduces energy loss. Additionally, there is a basic type in the medium series (55/75 kW). Equipped with a premium efficiency IE3 motor, it boasts high environmental performance. 【Features of the inverter compressor basic type (7.5 to 15 kW)】 ■ Maximum class air discharge volume ■ Quiet environment ■ Low maintenance ■ Environmentally friendly *For more details, please refer to the PDF document or feel free to contact us.

• Other environmental equipment

This product aims to achieve energy savings by minimizing the number of compressors in operation within the required pressure range according to the consumption air volume (controlling up to 8 units). With digital pressure display, it is also possible to set detailed pressure ranges and the number of units in operation. Additionally, by combining inverter machines with standard unloaders or controlling only inverter machines, further energy-saving effects can be achieved. 【Features】 ■ Minimizes the number of compressors in operation to save energy according to consumption air volume ■ Allows for detailed settings of pressure ranges and the number of units in operation ■ i&u control: Inverter machines operate first and stop last ■ Base load control: Turbo compressors operate continuously as base load machines, while load fluctuations are managed by inverter machines * For more details, please refer to the PDF materials or feel free to contact us.

• controller

The J12/16 series is a high-end jig boring machine that achieves high-precision machining of large workpieces. Built on over 70 years of rich experience in jig boring machine production at Mitsui Seiki, the next-generation jig borer delivers the high precision and high efficiency machining that customers demand.

• Other machine tools

■ The mother machine within the mother machine that serves as the standard for cutting processing machines. ■ The X and Y axes achieve ultimate high-precision feeding through precision needle rollers on meticulously machined V-F shaped sliding surfaces. The scales used are of the highest quality. ■ The Z axis uses a quill mechanism, achieving high precision in cylindricality even in deep hole boring. Additionally, manual Z-axis feeding is available as an option, allowing for delicate cuts while monitoring the machining situation. ■ The bed features a three-point support system with sufficient thickness and ideally placed ribs, maintaining the machine's perpendicularity, parallelism, and straightness unaffected by changes in the foundation. ■ The table, which has a wide working space, is machined on the top surface to achieve a flatness that is as close to zero as possible. ■ The vertical movement accommodates tall workpieces with ease. ■ The unique horizontal balance mechanism ensures stable vertical movement of the head regardless of its position along the Y-axis.

• Other machine tools

■ The mother machine that serves as the standard for cutting processing machines, located within the mother machine. ■ The X and Y axes achieve ultimate high-precision feeding through precision needle rollers on meticulously finished V-F shaped sliding surfaces. The scales used are of the highest quality. ■ The Z axis uses a quill system, achieving high precision in cylindricality even in deep hole boring. Additionally, manual Z-axis feeding is available as an option, allowing for delicate cuts while monitoring the machining situation. ■ The bed features a three-point support system with sufficient thickness and ideally placed ribs, maintaining the machine's perpendicularity, parallelism, and straightness unaffected by changes in the foundation. ■ The table, with a wide working space, has a finely finished top surface, achieving a flatness close to zero. ■ The horizontal carriage can easily accommodate tall workpieces. ■ The unique horizontal carriage balance mechanism ensures stable horizontal movement regardless of the head's position along the Y-axis.

• Other machine tools

Achieving top-class precision as a screw grinding machine Significant improvement in processing efficiency Realization of advanced automation in grinding processes Achieving top-class precision as a screw grinding machine through thorough craftsmanship

• Other machine tools

Equipped with the latest spindle thermal displacement correction function as standard. Significant suppression of thermal displacement of the spindle and head through a special thermal displacement cancellation mechanism. A left-right symmetrical gantry column structure that takes thermal deformation into account. Adoption of high-speed linear motors for the linear axis and DD motors for the rotary axis. The front opening width has been increased with a rotating two-stage door.

• Other machine tools

Oil-free water-lubricated compressor that does not use any oil. No need for oil changes or waste oil disposal, suitable for ISO 14000 certification. Applicable to food safety management systems (HACCP) with clean air. Reduces CO2 emissions with a high-efficiency inverter compressor, achieving carbon neutrality.

• Pneumatic Equipment

It is said that the power consumption of compressors accounts for more than 20% of the electricity used in production sites. While it is thought that reducing the amount of air used will also decrease electricity consumption as production volume decreases, in reality, a corresponding reduction in electricity usage cannot be expected. Mitsui Seiki is committed to achieving carbon neutrality by providing energy-efficient inverter compressors and addressing energy conservation and environmental issues. Please feel free to contact us when needed. 【Features】 ■ Constant-speed compressors consume 70% of the power at maximum load ■ Reduce costs and CO2 with appropriately sized inverter compressors ■ Reduce waste with inverter compressors ■ 100% oil-free *For more details, please refer to the PDF materials or feel free to contact us.

• Pneumatic Equipment
• Other air conditioning equipment

The "J750G" is a top-class jig grinding machine designed for high-precision grinding of large workpieces. In addition to being able to easily accommodate large plates, it also allows for the processing of multiple small to medium-sized workpieces. It addresses the very challenging issues of "large" and "high precision," and furthermore, it significantly expands the grinding wheel cutting stroke to broaden the possibilities for automated processing. [Features] ■ Extensive processing area ■ Achieves positioning accuracy within 2μm even with long strokes (X: 1530) ■ A rich lineup of grinding heads tailored to various applications ■ Supports the automation of high-precision grinding ■ Control panel thoroughly analyzed based on actual operations *For more details, please refer to the PDF materials or feel free to contact us.

• Grinding Machine