YUKEN injection Molding Machine A37 series radial piston pump
YUKEN A37 series radial piston pump is a high-performance variable piston pump specially designed for high-pressure hydraulic systems such as injection molding machines. It is known for its high efficiency and energy saving, low noise, and high reliability. It is widely used in various injection molding equipment in the plastic processing industry.
1. Analysis of model coding system
A37 series models use standardized coding to facilitate quick identification of product specifications：
| Code segment | Meaning | Optional value |
|---|---|---|
| A37 / Series code (displacement about 37cc/rev) / – | ||
| F/L | Installation form | F: Flange installation, L: Other installation methods |
| R/L | Direction of rotation | R: clockwise, L: counterclockwise |
| 01/04/07 / Control method | 01: Pressure compensation control type 04: Electro-hydraulic proportional load sensitive control type 07: Remote pressure control type | |
| B/C/H/Pressure level | B:1.5 ~7 MPa C:1.5 ~16 MPa H:1.5 ~21 MPa | |
| S | Special functions | S: Special functions such as signal feedback |
| K | Shaft extension form | K: Flat key |
| 32 / Standard code | – |
Examples of typical models: A37-F-R-01-H-S-K-32 (commonly used models for injection molding machines)
2. Core performance characteristics
- High efficiency and energy saving: The total efficiency is as high as 90% or more, and the shut-off characteristics are excellent. Compared with ordinary quantitative pumps, the input power can be saved by 15-30%, and the operating cost of the injection molding machine can be reduced.
- Low noise design: Optimized hydrodynamic structure and precision manufacturing process, at 1500rpm and 7MPa, the noise at 1 meter is only about55dB(A)
- Stable operation under high pressure: The maximum working pressure can reach 28MPa to meet the needs of high-pressure processes such as mold closing and glue injection of injection molding machines
- Flexible variable control: A variety of control methods are available to adapt to different injection molding process requirements
-Pressure compensation control: automatically adapt to load changes and keep the system pressure stable
-Sensitive control of electro-hydraulic proportional load: the flow rate can be accurately adjusted through the proportional valve, which is suitable for complex injection molding cycles.
-Remote pressure control: easy to integrate centralized control and automation - High reliability structure
-9 plungers are arranged radially, made of high-quality alloy steel, with high fatigue strength
-Bronze/steel composite distribution disc, good self-lubricating performance and long wear-resistant life
-Heavy-duty roller bearing system, suitable for long-term high-load operation
-Multiple sealing design to prevent oil leakage and improve system efficiency
3. Key technical parameters
| Parameter items | Value range | Remarks |
|---|---|---|
| Displacement | 10~37 cc /rev | Variable adjustment range |
| Maximum working pressure | 21~28 MPa / Depending on the pressure level | |
| Maximum speed | 1800 rpm | continuous operation |
| Control pressure range | 1.5~21 MPa / Corresponding to B/C/H grade | |
| Weight | about 30~32.3 kg / Slightly different due to model | |
| Installation method | Flange installation (standard) | Adapt to the layout of the hydraulic station of the injection molding machine / |
| Shaft extension form | Flat key (K type) / Easy to connect to the motor |
4. Application advantages of injection molding machine
A37 series plunger pumps are optimized for injection molding processes and provide the following core values：
- Glue injection stage: quickly respond to system pressure changes, provide stable high pressure, and ensure product accuracy and consistency
- Mold closing stage: efficient transmission of power, reduce energy consumption, while maintaining low noise operation
- Holding stage: precise control of pressure compensation, reduce energy waste, and extend mold life
- Cooling stage: Automatically reduce the flow output and enter the energy-saving mode, significantly reducing standby energy consumption
5. Strong adaptability: Compatible with various injection molding machine control systems, support hydraulic system upgrading and transformation
5. Installation and maintenance points
- Prepare before installation
-Hydraulic oil must be pre-filled through the oil injection port until the oil overflows to prevent damage to dry operation
-Ensure that the mounting surface is clean and flat, and the bolts are fastened according to the prescribed torque
-The coaxiality error between the motor and the pump shaft is ≤0.1mm to avoid partial load operation - Daily maintenance
-Regularly check the cleanliness of the oil, it is recommended to use NAS grade 7 or above hydraulic oil
-The oil temperature is controlled at 30~55℃ to avoid high temperature and accelerate the aging of the seal
-Replace the filter element every 2000 hours and the hydraulic oil every 5000 hours
-Regularly check for leaks and replace seals in time - Troubleshooting
-Unstable pressure: check whether the control piston, spring and damping holes are clogged
-Abnormal noise: check whether the oil suction line is air intake, or whether the bearing is worn
-Insufficient flow: check whether the variable mechanism is stuck, or whether the distribution disc is worn out
6. Recommended commonly used models
According to the different tonnage and process requirements of injection molding machines, the following commonly used models are recommended：
| Tonnage of injection molding machine | Recommended model | Control method | Applicable scenarios |
|---|---|---|---|
| 50~150 tons | A37-F-R-01-C-K-32 /Pressure compensation | small precision injection molding | |
| 150~300 tons | A37-F-R-01-H-S-K-32 /Pressure compensation +signal feedback | Medium-sized general injection molding | |
| 300~500 tons | A37-F-R-04-H-K-32 | Electro-hydraulic proportional load sensitive | large-scale high-speed injection molding |
| More than 500 tons |A37-F-R-07-H-K-32 /Remote pressure control | ultra-large injection molding or multi-component injection molding |
With its excellent performance, YUKEN A37 series radial piston pumps have become one of the preferred hydraulic components for injection molding machine manufacturers around the world, providing efficient, stable and energy-saving hydraulic power solutions for the plastic processing industry.
Do I need to organize the above content into a lite version (within 300 words) that can be directly used in the product catalog, and attach 10 A37 series keywords that are frequently searched in the injection molding machine industry?
