How to Find the Best Allison Transmission Spare Parts Supplier in China?

As far as heavy-duty gearboxes are concerned, the Allison 9000 series stands out and becomes the first choice for industries requiring strong and reliable performance. But what makes this transmission so special, and how can you ensure you're getting genuine Allison transmission spare parts from a trusted supplier?（Source：https://cnforceparts.com/）

What is an Allison 9000 series transmission?

Allison 9000 series transmission is a high-performance, heavy-duty automatic gearbox designed for a wide range of applications, including mining, construction and transportation.

Unique advantages of Allison 9000 series1.High torque capacity

Allison 9000 series transmission can handle maximum input torque of up to 3800 N m (Model 9700), making it suitable for the most demanding heavy-duty applications. This has been verified by Allison's internal laboratory and third-party testing organization similar to TV (TüV-2024-TR 089).

2.Excellent Efficiency

The transmission efficiency of Allison 9000 series is ≥ 96.5% at high speeds (60-80 km/h) and ≥ 94% at low speeds (5-15 km/h), which surpasses many competitors, thus significantly saving fuel.

3.Wide temperature range

The transmission can operate effectively in temperatures range of -30℃ to 120℃, ensuring reliable performance in extreme conditions. It can be started at -30℃ without auxiliary heating, and it can run stably at high temperatures for a long time.

4.Quick and Smooth Shifting

The Allison 9000 series offers rapid shift response times of ≤ 0.8 seconds under full load, with minimal shift shock (≤ 5 m/s ²), reducing wear and tear on the transmission and drivetrain.

Product description

Parameter

Value

Max Input Torque

3800 N·m (9700 Model)

Transmission Efficiency

96.5% (Highway) / 94% (Low-Speed)

Oil Temp Range

-30°C to 120°C

Shift Response Time

• 0.8s (Full Load)

Noise Level

• 82dB (Full Load)

Major application occasions1.Mining and quarrying industry (48%)

Used for mining dump trucks (80-150 tons) and for transporting materials such as coal and iron ore in open pit mines.

2.Ports and logistics (27%)

Reach stickers applied to port container tractors and short-distance transport of heavy containers (≥ 40 tons).

3.Special projects (25%)

Found in heavy cranes (such as. Liebherr LTM 1500 model) and concrete pump trucks is used in bridge construction and high-rise building engineering.(Source:https://www.21-sun.com/)

Case Study

A large iron mine in Inner Mongolia operates 20 dump trucks equipped with competitive brand gearboxes,resulting in annual maintenance costs of more than 84,000. In addition, the low transmission efficiency led to a fuel consumption of up to 180 liters per 100 kilometers.

In January 2024, They swapped out the old gearboxes and put in Allison 9700 series ones instead.The annual maintenance costs decreased to $ 35,000, a decrease of 58%.And both the fuel efficiency and operational efficiency saw significant improvements.

Related problems

Q 1: What could be the reasons for shift delay or excessive shift shock in the transmission, and how can they be resolved?

A: Common causes include insufficient hydraulic system pressure (normal working pressure: 1.2-1.5 MPa),worn clutch friction plates (if thickness is ≤ 3 mm, replace it), and stuck shift solenoid valves. Solutions include checking the pressure of the hydraulic pump and replacing the pump core (model: 29546789) if necessary, disassembling the clutch to measure the thickness of the friction plate and replacing worn parts, cleaning the solenoid valve with special cleaning agent (Allison 1068128) or replacing the solenoid valve assembly (model: 29546790).

Q 2: What should I do if the transmission oil temperature exceeds 120℃?

A: The troubleshooting steps include checking the cooling system (checking the blockage of the oil cooler to ensure that the fan works normally; If it is blocked, clean the oil cooler with compressed air), check the oil level of the transmission (too low oil level can lead to insufficient cooling; Replenish Alison TES 668 special oil), and check the clutch slipping (generating too much heat; Evaluate through torque test, and replace friction plates in case of slippage), and verifying that the load does not exceed the rated value (long-term overload can increase the oil temperature; Adjust the operation intensity accordingly).

Q 3: What are the precautions for starting and closing the Allison 9000 series transmission?

A : ①Precautions for starting include starting the oil pan heater in winter (temperature ≤-10℃) and waiting for the oil temperature to rise above 5℃ before starting it. After starting it, run at idle speed for 3-5 minutes to stabilize oil pressure (≥ 0.8 MPa), and then put it into gear to avoid accelerating the engine in neutral (which can cause dry friction of the clutch) Preventive measures for shutdown include shifting into neutral before shutting down the engine, replacing transmission oil and filters before long-term storage (more than one month) to prevent oil deterioration, and checking the oil level and replenishing it to the standard mark after shutdown.

Q 4: How to prolong the service life of the transmission when climbing a hill with heavy load (gradient ≥ 15)?

A: The operating instructions include shifting into a lower gear (for example.2nd or 3rd gear) to avoid frequent gear shifting during climbing, keep the engine speed within the optimal power range of 1500-1800 rpm to prevent torque shortage caused by low speeds, avoiding sudden acceleration (which will increase the clutch load) and maintaining a stable speed during climbing, and if there is a shift delay, temporarily release the accelerator to allow gear shifting to be completed before accelerating again, thus preventing forced gear shifting and impact.

Q 5: What are the differences between the sub-models (9300/9500/9700) of the Allison 9000 series? How should I choose?

A: The core differences lies in their torque capacities: ①The maximum input torque of 9300 model is 2800N・m, which is suitable for equipment of 60-80 ton (for example. Port trailer); ②The maximum input torque of model 9500 is 3200N・m, which is suitable for 80-100 ton of equipment (for example. Medium-sized mine dump trucks); ③The maximum input torque of 9700 model is 3800N・m, which is suitable for 100-150 ton of equipment (for example. Large mining dump trucks and heavy cranes. Selection should be made according to the rated load of the equipment, engine displacement (matching torque) and operating intensity.

Summary

Allison 9000 series transmission are the top choice for heavy-duty applications, providing unparalleled torque capacity, efficiency and durability. When purchasing Allison gearbox spare parts in China, it is very important to choose a certified supplier that provides high quality products, excellent customer service and competitive prices. By following the tips outlined in this guide, you can ensure that your Allison 9000 series transmission will continue to operate in the best condition for the next few years.

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