大同機械製造 List of Products and Services

"Easy Cutter" is a product born from the voices of those who want to easily and neatly cut gland packing. Simply set the gland packing on the base, grip the handle, and lower the cutter for easy operation. The safety guard ensures protection against finger pinching. It neatly cuts various materials such as "PTFE fiber braided packing" and "aramid fiber." 【Features】 ■ Just grip the handle and lower the cutter ■ Neatly cuts various materials ■ Easily cuts multiple pieces for increased efficiency ■ Safe operation with the safety guard *For more details, please refer to the PDF document or feel free to contact us.

• cutter
• Pipe and cable cutters
• Cutter/Scissors

The "HT type" is a slide valve type, two-stage, horizontal water-cooled vacuum pump. It requires no post-treatment of water or oil, has low running costs, and is very environmentally friendly. Although it has a large weight per airflow due to its low speed, it has advantages such as a robust structure that is easy to handle and good efficiency at intermediate vacuum levels, which is why it is still widely used today. 【Features】 ■ Trouble-free ■ Oil-free ■ Waste-free ■ Compact ■ Robust structure, easy maintenance *For more details, please refer to the PDF materials or feel free to contact us.

• Vacuum pump

The "FV type" is a plate valve type, double-acting, horizontal water-cooled vacuum pump. The exhaust speed is 11 to 35 m³/min, and the ultimate pressure is 5065 to 4000 Pa. Due to its low speed, the weight per airflow is large, but it has advantages such as a robust structure, ease of handling, and good efficiency at intermediate vacuum levels, making it widely used even today. 【Features】 ■ Trouble-free ■ Oil-free ■ Compact ■ Robust structure ■ Easy to handle *For more details, please refer to the PDF materials or feel free to contact us.

• Vacuum pump

The "HI type" is a reciprocating vacuum pump. The model is a slide valve type, single stage, horizontal water-cooled, with an exhaust speed of 2.0 to 38.4 m³/min. The achievable pressure ranges from 800 to 470 Pa. Due to its low speed, the weight per unit of airflow is large, but it has advantages such as a robust structure, ease of handling, and good efficiency at intermediate vacuum levels, which is why it is still widely used today. 【Features】 ■ Trouble-free ■ Oil-free ■ Compact ■ Robust structure ■ Easy to handle *For more details, please refer to the PDF materials or feel free to contact us.

• Vacuum pump

The shaft sealing method will be selected based on the fluid characteristics, operating conditions, and cost-effectiveness to choose the most suitable method. The materials illustrate typical methods of shaft sealing, including gland packing, single mechanical seals, and tandem mechanical seals. We are offering a product catalog that includes technical documents explaining shaft sealing methods for free! If you are interested, please view the materials via "PDF Download." 【Typical Methods of Shaft Sealing】 ■ Gland Packing ■ Single Mechanical Seal ■ Tandem Mechanical Seal ■ Double Mechanical Seal *For more details, please refer to the PDF materials or feel free to contact us.

• Other pumps
• Vacuum pump

We offer "vacuum pumps" that are robust in structure and easy to handle. Our lineup includes the single-stage slide valve vacuum pump "HI type," the two-stage "HT type," and the plate valve type "FV type." For models HI2 to 8 (HT-2 to 8), the area around the eccentric rod is entirely oil-free, which reduces operating costs. 【Features】 ■ Robust structure and easy maintenance ■ Local maintenance support available ■ Minimal maintenance time ■ Reduction of production costs due to downtime *For more details, please refer to the PDF materials or feel free to contact us.

• Other pumps
• Vacuum pump

The "vane pump" has a very simple structure with two rotor plates sliding into a rotating rotor shaft. When the rotor shaft, which is mounted eccentrically inside the casing, rotates, the two rotor plates (vanes) slide alternately to pump the liquid. Due to its simple structure, it is very easy to handle, including cleaning and disassembly, and it is economical with low maintenance costs. 【Features】 ■ Two rotor plates (vanes) slide alternately to pump liquid ■ Very simple structure ■ Easy to handle, including cleaning and disassembly ■ Economical with low maintenance costs *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

The "lobe pump" is a non-contact pump where two rotors rotate via a timing gear, ensuring that the rotors do not touch each other. Thanks to its unique three-lobe rotor design, it transfers liquids smoothly without damaging them or breaking down liquids containing solids. The connection at the inlet and outlet is standard with sanitary screw union fittings, but it is also possible to manufacture with hose, flanges, or PT threads. 【Features】 ■ Unique three-lobe rotor for a non-contact pump ■ Smooth liquid transfer capability ■ Capable of switching between discharge and suction due to reversible rotation ■ Completely sanitary design ■ Made of SUS316 material *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

The "Mag Pump" is a seal-less internal gear pump that combines a taocloid tooth profile pump with a magnetic coupling using rare earth cobalt magnets. It is maintenance-free, eliminating the need for maintenance, inspection, and repair of the shaft seal. The shroud (partition) of the Mag Pump completely isolates the liquid inside the pump from the outside, preventing any liquid leakage and shutting out dirt and odors around the pump. 【Features】 ■ Seal-less internal gear pump combined with a magnetic coupling ■ No liquid leakage from the shaft area ■ Capable of handling temperatures up to 200°C ■ Utilizes a uniquely developed taocloid tooth profile (patented) ■ Suitable for environmental conservation and pollution prevention *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

The "TG Series" is an internal gear pump equipped with a uniquely developed taocloid tooth profile. Due to the single-axis shaft, disassembly and cleaning of the wetted parts is easy. Maintenance of the wetted parts can be performed while the main unit is attached to the piping. We have achieved low prices through production at our wholly-owned subsidiary in China. 【Features】 ■ Easy disassembly and cleaning of the wetted parts due to the single-axis shaft ■ Maintenance of the wetted parts possible while the main unit is attached to the piping ■ Adoption of a uniquely developed taocloid tooth profile (patented) ■ Produced at our subsidiary in China, with key components manufactured domestically ■ Low vibration and noise due to smooth meshing of gears and pinions *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

The "internal gear pump" consists of a gear, which is the driving gear, and a pinion, which is the driven gear. The pinion is attached to the pinion pin via a pinion bushing. The center of the pinion is eccentric to the center of the gear, and there is a crescent-shaped partition between the two gears. When the gear, which is fastened to the shaft, rotates, the pinion rotates inside the crescent guide through the pinion bushing, while the gear rotates on the outside, sending the liquid that fills the space between the teeth to the discharge port. 【Features】 ■ Easy maintenance ■ Wide range of applications ■ Excellent durability ■ Outstanding NPSH characteristics ■ Custom specifications available *For more details, please refer to the PDF document or feel free to contact us.

• Other pumps

The Daido internal gear pump G series has a proven track record in liquid transfer for the chemical industry and has received high praise for its durability and reliability. The gears, which are the heart of the pump, exhibit long life and high efficiency due to the uniquely developed taocloid tooth profile. 【Features】 - The shaft is single-axis, making disassembly and cleaning of the wetted parts easy. - Maintenance of the wetted parts can be performed while the main body is attached to the piping. - Jacket-type manufacturing is available for wetted areas (including shaft seal areas). - Utilizes a uniquely developed taocloid tooth profile (patent obtained). *For more details, please request documentation or view the PDF data available for download. We also accept requests for rentals, so please let us know.

• Special Pump

It has a very strong and sturdy structure, so it is not a problem if the gas being sucked in contains some resin or water.

• Other pumps
• Vacuum pump

The Daitō reciprocating vacuum pump does not require post-treatment of water or oil compared to other vacuum pumps (such as water-sealed or oil rotary types). Additionally, it has a very strong and robust structure, so it is not a problem if the gas being suctioned contains some resin or water.

• Other pumps
• Vacuum pump

The "SE Series" is an internal gear pump capable of high-speed operation due to the adoption of a taocroid tooth profile. The uniquely developed taocroid tooth profile and structure focused on functionality exhibit excellent performance and operation for general applications. The gland packing type adopts a single bearing and single metal method, making the entire pump compact. The mechanical seal type employs a two-bearing method. 【Features】 ■ By supporting the pump with casing legs, it can withstand larger piping loads. ■ Easy maintenance. ■ The back pull-out method allows for disassembly of the pump's rotating parts without removing the piping. ■ The structure allows for axial gap adjustment with inner and outer covers. ■ The external bearing is sealed with grease, eliminating the need for greasing. *For more details, please refer to the PDF materials or feel free to contact us.

• Other pumps