Performance characteristics

Small size, light weight, flexible layout;

Working pressure up to 45MPa;

Directly bear radial and axial forces;

High overall efficiency and start-up efficiency; After unloading, it can run freely (freewheel)

Structural features

Radial plunger multi-action high-torque motor;

The plunger directly transmits force through the roller;

Modular structure, easy to change;

A variety of installation and shaft extension types can be selected; multi-disc or shoe brakes can be installed; it can be installed in pairs to make a drive axle

Special Motor LD Series for Injection Molding Machine

Structure principle

The plunger cylinder, which is pressurized with oil, is acted on by hydraulic pressure to generate thrust P on the plunger body. The thrust acts on the center of the crankshaft through the connecting rod, causing the output shaft to rotate, and the oil distribution plate rotates along with it. When the position of the plunger body reaches the bottom dead center, the plunger cylinder is connected to the oil return port by the oil distribution plate. The plunger is pushed up by the crankshaft. At this time, the hydraulic oil after the work is returned to the oil tank through the oil distribution pan. Each plunger body is connected with high and low pressure oil in turn, and the driving torque generated by each plunger body to the center of the output shaft is added in the same direction, so that the motor output shaft obtains a continuous and stable rotation torque. When the direction of oil flow is changed, the direction of rotation of the motor can be changed. If the oil distribution plate is rotated by 180°, the motor can also be reversed.

Product feature

LD series product is such kind of low speed high torque motor with cranLDhaft and connecting rod, produced in strict accordance with the technology and standard of Italy. Meanwhile, we also employ new technoloqy to improve the motor performance according to the market requirements.

The main features include:

1:Low noise due to an eccentric cranLDhaft and low excitation frequency of five-piston design;

2:Revolve steadily under very low speed due to high starting torque and good low-speed stability;

3:Good reliability and less leakage due to the patented flat compensation distributor, special sealing between piston and plunger bushing guarantees higher volumetrical effvciency;

4:High mechanical efficency due to roller bearing between cranLDhaft and connecting rod;

5:Reversible rotation, and the output shaft can bear certain extermal force from both radial and axial diredtions;

6:High power-mass ratio, small volume and light weight.

LDF series of special motors for injection molding machines

Product overview

The latest presented product-LDF series hydraulic motor, not only reflects our rich experience in hydraulic motor manufacture, but absorbs the advantages of cranLDhaft connecting rod hydraulic motor from both home and abroad.

Its main features

1：Static pressure balance structure between shaft joint and connecting rod, thereby, it well smoothes the fiction joint and releases shaft pressure.

2：Because of the decrease of the fiction work and heat loss, mechanical and starting efficiency increase, the work pressure of motor also improves.

3：The shaft of this series employs fission structure to prolong motor life.

4：All the key parts of this series use special material and employ special heat treatment, therefore, efficiently prolong motor life.

5：As the dimension and performance data of this series are the same as HMB series of KAWASAKI-STAFFA Company, it could replace HMB directly.

Notes

Besides those mentioned in the LD series, please also note that:

Because this series employs static pressure balance structure, the motor leakage increase accordingly. When connect drain port from outside, the inner diameter should not less than 12mm, otherwise will damage the shaft seal. Also, when connect the tie-in of the drain port, do not screw in too much.

GM Series Special Motor for Injection Molding Machine

Product overview

GM series hydraulic motor is a new type of product of our company, which is based on years practical experience. The design is improved in the foundation on the original technologies. GM hydraulic motor mainly has the following characteristics:

As the piston and the tilt cylinder have no side force ,the piston bottom is designed to be static pressure balance. The torsional force is transferring between the piston and the crankshaft through rolling bearing, so the friction loss during the transferring process of force is reduced. Therefore, GM series hydraulic motor has such features as: very high mechanical efficiency and comparatively high startup torque (mechanical efficiency of over 0.92 during startup).

The plane distributor (patented technology)is simple and reliable with perfect seal performance and almost no leakage. The plastic piston ring is used to seal between the piston and the tilt cylinder, so it has very high volumetric efficiency (can be as high as 0.98).

As the structure of this product has reduced friction loss and enhanced the seal performance, the product has perfect stability at low speed. It can stably run at 10r/min working condition and has big speed regulation range.

As the piston is jointed closely with bearing bushing without any clearance, this series of hydraulic motor can run at pump working condition.

This series of hydraulic motor has high pressure, (the highest pressure can reach 31.5 Mpa) light weight, small bulk and high specific power.

As this series hydraulic motor has simple structure, reasonable design and adopts bearing with big load ability, it can work reliably and has long life and low noise; the transmission shaft allows endure radial load and the rotational direction is reversible.

Products application range

As GM series hydraulic motor has the above characteristics, it has wide application range. It can be applied in the hydraulic transmission systems of various types of machinery in plastic injection machine, light industry machine, engineering machine, metallurgical equipment, petroleum, coal mine, geological prospecting, railway, ship, environment protection, machine tool and agricultural machine industries.

BM series special motors for injection molding machines

BM series of motor are small volume,economical type, which is designed with shaft oil distribution ,。

Characteristic features

1:Advanced manufacturing devices for the Gerotor gear set, which provides small volume,high efficiency and long life.

2:Shaft seal can bear high pressure , which can be used in parallel or in series.

3:Advanced construction design,high power and light weight.

1:Rated speed-output value obtained under rated flow pressure.

2:Cont.value-Maximum pressure after continuous work.

3:Int.value-Maximum pressure after work 6 seconds out of 1 minute.

4:Peak value-Maximum pressure after work 0.6 seconds out of 1 minute.

MS Series Special Motor for Injection Molding Machine

Performance characteristics

Small size, light weight, flexible layout;

Working pressure up to 45MPa;

Directly bear radial and axial forces;

High overall efficiency and start-up efficiency; After unloading, it can run freely (freewheel)

Structural features

Radial plunger multi-action high-torque motor;

The plunger directly transmits force through the roller;

Modular structure, easy to change;

A variety of installation and shaft extension types can be selected; multi-disc or shoe brakes can be installed; it can be installed in pairs to make a drive axle

MS Series Special Motor for Injection Molding Machine

product description

CNA series shell-to-hydrostatic drive device is an ideal deceleration component in the transmission mechanism. Due to its compact structure, these reducers can also be used in places where the installation environment is extremely difficult. The product adopts international transmission technology and design experience and advanced processing methods, effectively ensuring high load-bearing capacity and operational reliability.

The reducer designed not only meets the Rexroth series standards, but can also be designed to provide alternative products similar to Brevini, Japan, Teijin, Fujitsu, KYB, Fairfield or Sauer. As the company has strong innovative design capabilities, we can provide customers with consulting services and reasonable selection, in order to find the most suitable product solutions for customers.

According to the design requirements, the reducer can not only be connected with Rexroth type quantitative or variable hydraulic motors, but also can be matched with other hydraulic motors if necessary. The input end of the reducer can be equipped with a multi-disc parking brake with coil spring brake and hydraulic release as required. The static braking torque of the brake is compatible with the input torque of the equipped hydraulic motor (generally greater than 1.5 times). For some reducers, mechanical disengagement clutches can also be installed according to requirements, so that they can be pulled by other equipment in an emergency, which can prevent hydraulic components from being damaged.

This type of reducer has been widely used in the main and auxiliary hoisting and crawler driving of rotary drilling rigs, the main and auxiliary, luffing hoisting and crawler driving of crawler cranes, the crawler driving of various drilling rigs, road rollers, and high-altitude operation wheel drives. The power head and walking drive of iron chuang machine and coal mine roadheader, the drive mechanism of ship crane, terminal and container crane. The products were mainly exported to Europe, North America and other countries before 2008, and are now used in batches in major domestic enterprises. (Note: The specific specific speed of the product is different, and the length is slightly different. Please contact our company's technical staff.)