Loader Parts

Your Professional Loader Parts Supplier

Jining Xuansong Engineering Machinery Co., Ltd. specializes in the production and sales of construction machinery accessories, and is committed to providing customers with safe, reliable products and services. The company supplies spare parts for excavators, wheel loaders, bulldozers, and other types of construction equipment.

Rich Experience

With over 30 years of experience, Jining Xuansong Engineering Machinery Co., Ltd. has been engaged in the manufacturing of excavators and bulldozers.

Quality Certification

The company has obtained the ISO 9001 and ISO 14001 international quality and environmental management system certifications.

Fast Delivery

We assist customers in acquiring spare parts with optimal quality and value, ensuring prompt delivery.

Sales Market

Our products are exported to numerous countries, including Russia, Vietnam, Laos, Malaysia, and Brazil.

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Parameter

Material	30MnB steel or 45# Carbon Steel or 85# Carbon Steel
Finish	Smooth
Colors	Black
Technique	Forging, machining, heat treatment
Surface Hardness	30MnB is HRC42-49, 45# is HRC42-58, 80# is 280-320 HB

Types of Loader Parts

The loader parts produced by our company mainly include the following types:

Loader Gear Pump

A loader gear pump is a type of positive displacement pump that uses rotating gears to move hydraulic fluid in a loader machine. It's a core component of the loader's hydraulic system, responsible for generating the necessary pressure and flow to operate functions like lifting, tilting, and steering.

Loader Variable Speed Valves

Loader Variable Speed Valves refer to a control valve system designed to regulate the flow of hydraulic fluid to various functions on a loader, allowing for variable speed control of those functions.

Loader Solenoid Valve

Loader solenoid valves 17A-15-17271 are commonly used to control the flow and pressure of hydraulic systems, ensuring that various actions of the loader such as lifting, tilting, etc. can be accurately executed.

Advantages of Loader Parts

Loader Gear Pump

Loader gear pumps have many advantages, including:
● Simple structure: The main components of the loader gear pump 421-62-H4140 include a pair of meshing gears and a pump body, with a compact structure that is easy to manufacture and maintain.
● Small size and light weight: Due to its compact design, the gear pump has a small volume and light weight, making it easy to install and use.
● Low cost: Due to the small number of parts and ease of manufacturing, the production cost of gear pumps is relatively low.
● Easy maintenance: The design of the gear pump makes parts easy to replace and maintenance costs low
● Strong self-priming ability: The chamber has good sealing and can suck in liquids without external assistance.
● Good pollution resistance: The gear pump has a large clearance and can tolerate impurities and particles in the oil, making it suitable for media containing trace particles.
● Large flow pulsation: Due to the discontinuous volume change during gear meshing, the flow pulsation is large.
● Low efficiency: Due to the presence of multiple leakage pathways (such as tooth tip clearance, end face clearance, and meshing clearance), the efficiency of gear pumps is low.

Loader Variable Speed Valves

Loader variable speed valves have many advantages, including:
● Pressure regulation and safety protection: The pressure regulating valve plays a role in pressure regulation and safety protection in the variable speed valve of the loader. It dynamically adjusts the return oil volume or limits the output of the oil pump to ensure that the system pressure remains stable within the set range, preventing excessive or insufficient oil pressure and protecting the oil pump and hydraulic system from damage.
● Shift control: The distribution valve is responsible for operating the engagement and disengagement of each shift brake (or clutch) to achieve shift operation. The cut-off valve disengages the shift brake and shifts the gearbox into neutral when the brake pedal is pressed; After the braking is completed, the cut-off valve automatically engages the shift brake, and the gearbox returns to its original gear position.
● Reduce shift shock: The shift control valve provides the required pressure for each gear, gradually increasing the pressure and reducing the impact force during gear shifting, thereby improving the smoothness and comfort of operation.

Loader Solenoid Valve

Loader solenoid valves have many advantages, including:
● Safe, reliable, and leak free
● The system is simple and easy to connect
● Fast response and low power consumption
● Limited adjustment accuracy

Installation Steps of Loader Gear Pump (Loader Parts)

Orient correctly: Check the flow direction arrow on the valve body and align it with the flow direction of the pipeline.

Install upright (if possible): It is generally recommended to install the solenoid valve with the coil facing upwards to prevent debris buildup and ensure optimal performance.

Secure the valve: Attach the valve to the mounting bracket or existing framework using appropriate fasteners.

Mount the coil: Secure the coil to the valve body according to the manufacturer's instructions.

Apply sealant: Use pipe thread sealant or tape on the threaded connections to ensure a leak-free seal.

Connect to pipeline: Connect the valve to the pipeline, typically using threaded connections at the inlet and outlet ports.

Tighten connections: Carefully tighten the connections, potentially using a wrench to hold the valve steady while fastening.

Ensure correct voltage: Verify that the supply voltage matches the valve's specifications.

Wire the solenoid: Connect the solenoid wires to the appropriate terminals on the controller or power supply, following the wiring diagram.

Ground the valve: Connect the ground wire to a suitable grounding point for safety.

Reconnect power: Once installation is complete, carefully reconnect the power supply.

Test the circuit: Cycle the valve to ensure it opens and closes as expected.

Check for leaks: Inspect all connections for any leaks and rectify them immediately.

Precautions for Using Loader Solenoid Valve (Loader Parts)

Regular cleaning
The electromagnetic valve of the loader is susceptible to contamination from dust, impurities, etc. It should be regularly cleaned both externally and internally to keep the solenoid valve clean.

Check the wire connection
When the electromagnetic valve of the loader is working, the power supply needs to be connected, and the wire connection should be checked for looseness or damage to ensure that the wire is in normal contact.

Check the sealing performance
Once there is a problem with the sealing performance of the loader solenoid valve, it will affect the normal operation of the hydraulic system. The condition of the sealing components should be checked regularly and replaced if necessary.

Replace lubricating oil
The internal mechanism of the solenoid valve requires lubricating oil for lubrication. Expired lubricating oil will affect the normal operation of the solenoid valve, and new lubricating oil should be replaced regularly.

Repair the solenoid valve

When there is a problem with the loader solenoid valve, it should be repaired in a timely manner, such as replacing the electromagnet, replacing the sealing ring, etc. But the maintenance of solenoid valves requires professional technicians to operate, and it is not recommended to do it by oneself.

Ordering Process

》Please tell us the product, quantity etc first.Please send inquiry/email or contact us on line.
》Discuss all details with you and make the sample if needed.
》Start the mass production after getting your payment(deposit).
》Send goods to you.
》Receive the goods in your side.

Packaging and Shipping

Packaging	Standard export package, wood cases, or as customers' demands.
Shipping	Shipping by sea, by air, by express are acceptable. According to your requirements.

FAQ

Q: How does a loader gear pump work?

A: The pump consists of two gears - a driver gear connected to the power source (usually the engine) and a driven gear. As the driver gear rotates, it meshes with the driven gear, causing it to turn as well. When the gears separate on the inlet side, they create a low - pressure area. This allows hydraulic fluid to be drawn into the pump.

Q: What are the main types of loader gear pumps?

A: The two main types are external gear pumps and internal gear pumps. In an external gear pump, two external - toothed gears mesh with each other. External gear pumps are widely used in loaders due to their simplicity and reliability. An internal gear pump has an outer gear with internal teeth and an inner gear with external teeth. The inner gear rotates within the outer gear, creating chambers that trap and transfer fluid.

Q: What materials are loader gear pumps made of?

A: Loader gear pumps are typically made of materials like cast iron, which offers good strength and wear resistance at a relatively low cost. Stainless steel is used when the pump needs to handle corrosive fluids or in applications where higher corrosion resistance is required. Bronze is also an option, especially in situations where the fluid being pumped has some abrasive properties, as bronze has good antifriction and wear - resistant characteristics.

Q: What is the typical lifespan of a loader gear pump?

A: The lifespan of a loader gear pump can vary widely depending on several factors. Under normal operating conditions with proper maintenance, a well - made gear pump can last for thousands of hours, often in the range of 5000 - 10000 hours.

Q: How do you select the right loader gear pump for a specific loader model?

A: When selecting a gear pump for a loader, first, consider the hydraulic system's requirements. This includes the required flow rate, which is determined by the speed at which the hydraulic actuators (like the loader arms) need to move. The pressure rating of the pump should also match the maximum pressure the hydraulic system will operate at.

Q: What are the common problems that can occur with loader gear pumps?

A: Common problems include gear wear, which can lead to reduced pump efficiency and flow rate. Leakage is also a frequent issue, either from the shaft seals or between the pump housing components. Cavitation can occur when the pressure in the pump drops below the vapor pressure of the fluid, causing the formation and collapse of vapor bubbles, which can damage the pump.

As one of the most professional loader parts manufacturers and suppliers in China, we're featured by quality products and good price. Please feel free to buy cheap loader parts made in China here from our factory.

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