Shandong Huashou Transmission Technology Co., Ltd. is one of the leading manufacturers and suppliers of excavator torque converter in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to wholesale bulk durable excavator torque converter in stock here from our factory. Also, pricelist is available.
Product Overview
Lots of aftermarket excavator torque converters bolt on easily but slip and overheat under heavy digging, leading to expensive transmission downtime.
Our torque converters follow OEM stall curves, fitted with precision cast vanes, G6.3 balancing and FKM double-lip seals. Every unit goes through dynamometer and leak tests to lock in reliability.
Batch quality stays consistent with full test records for your QA check. Built for repair shops, rental fleets and distributors. Send your OEM part number to confirm fit before purchase.
Product Structure & Key Features
Precision cast impeller, turbine and stator are tuned to OEM stall curves. They hold torque steady during continuous heavy digging and prevent the overheating that wears out cheap alternatives.
G6.3 dynamic balancing suppresses cyclic vibration from repeated loading. This reduces extra stress on mating transmission components and extends the whole powertrain service life.
FKM double-lip seals stand up to high operating oil temperatures on your excavator torque converter. They block oil leaks even in dusty, vibrating quarry and excavation site conditions.
Every finished unit runs dynamometer and hydrostatic leak tests. Real performance data is recorded, instead of relying on unproven nominal specs.
Rigid batch control keeps quality uniform across orders. Complete test records can be provided for your QA team to audit before stock intake.
Technical Specifications
| Item | Specification |
|---|---|
| Outer Diameter | 355 mm / 13.98 in |
| Overall Height | 205 mm / 8.07 in |
| Mounting Dimensions | Flywheel bolt circle Ø305 mm, 6 × M12; pilot bore Ø40 mm H7; flange flatness ≤0.10 mm |
| Connection Configuration | Flywheel-coupled input with integral lock-up clutch; output spline Ø38 mm, 24 teeth; 2 × G3/4 cooler ports (SAE 10) |
| Material | Precision-cast low-alloy steel impeller, turbine and stator; GG25 cast-iron housing; hardened spline HRC 55–60; FKM double-lip seals |
| Net Weight | 48 kg / 106 lb |
| Stall Torque Ratio | 2.3 : 1 |
| Stall Speed | 2,100 rpm ± 5% |
| Max Continuous Oil Temperature | 130 °C |
| Oil Capacity | 12 L |
| Dynamic Balance Grade | G6.3 |
| Test Performed per Unit | Hydrostatic leak test (5 min) + dynamometer stall test |
| Warranty | 12 months / 2,000 working hours, whichever comes first |
| Application | 18–25 t hydraulic excavators |
| Origin | China |
Applications & Compatibility
Rental Fleet Operation
This unit handles frequent load cycling. It stays stable through nonstop jobs and reduces unplanned downtime that erodes your rental income.
Quarry Heavy-Duty Digging
This unit follows OEM torque curves. It generates less heat under heavy stall loads and prevents costly transmission failures in tough rock sites.
Repair Shop Replacement
This unit supports direct replacement. No extra machining is needed, so your technicians can wrap up excavator repairs quickly.
Distributor Inventory Supply
This unit keeps steady batch quality. It works for mainstream 18–25t excavator models and is a dependable stock option for your parts business.
Manufacturing & Quality Control
Our Excavator Torque Converter runs on a closed-loop quality workflow. Raw castings and machined components get material verification before assembly.
Every unit completes G6.3 dynamic balancing, hydrostatic leak testing and dynamometer stall inspection - no random sampling only. All test data and batch records are kept for full traceability.
This disciplined process cuts the uneven quality seen across many aftermarket alternatives. Certification papers and test reports are available for your incoming audit, helping you avoid unexpected site failures and repeated warranty issues.
FAQ
Q: Will this unit still overheat when used in quarry rock digging?
A: It is tuned to hold heat steady under repeated stall loads. Overheating can still happen if the machine's oil cooler is blocked or fluid stays contaminated.
Q: What checks are done on the unit before it ships?
A: Every unit gets leak, balancing and dynamometer tests. We keep batch records so you can review performance data for your incoming inspection.
Q: Can this unit be swapped directly without modifying the transmission?
A: It is built for drop-in fit matching OEM dimensions. Always share your OEM part number first to confirm compatibility with your excavator.
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