Product Description
First gear cylinder body
Product Introduction
The first gear cylinder body is the core hydraulic load-bearing component of the first gear clutch system in a loader transmission. As the mounting carrier for the first gear piston, its main functions are to contain hydraulic oil, install seals, and provide a stable movement track for the piston. Hydraulic pressure drives the piston’s movement, thereby controlling the engagement and disengagement of the first gear driving and driven plates, realizing the transmission and cutoff of first gear power. It is a key hydraulic component ensuring smooth first gear shifting and stable power.
Made of high-strength ductile iron or aluminum alloy precision casting, and CNC precision boring and grinding, the cylinder body has a smooth, burr-free inner wall, high precision, strong rigidity, excellent pressure resistance, and is not easily deformed or leaking. It is resistant to high oil temperatures and transmission oil corrosion. The sealing groove dimensions are precise, perfectly matching the seals and piston body. Strictly conforming to original factory standards, it has strong interchangeability, requires no modification, and can directly replace original vehicle parts, suitable for loader transmission repair and new machine installation.
Application Scenarios
- Construction Sites: Earthmoving, loading, and leveling operations; frequent starts in first gear; low-speed heavy-load operation; stable cylinder pressure; no hydraulic oil leakage; ensuring smooth, jerky shifting.
- Mining and Quarrying: Heavy-load uphill driving; low-speed bumpy road conditions; withstands continuous hydraulic pressure and strong impact loads; cylinder body is not easily deformed or cracked; tight sealing; reliable operation.
- Sand and Gravel Yards, Coal Yards, and Mixing Plants: Long-term continuous low-speed loading, unloading, and stockpiling operations; high-frequency hydraulic cycle conditions; fatigue-resistant and high-temperature resistant; reduces hydraulic failures; ensures continuous operation.
- Transmission Repair and Support: Compatible with the repair and replacement of the first gear clutch system of 3-ton, 5-ton, 6-ton, and 7-ton wheel loaders; suitable for new machine installation; compatible with mainstream models.
- Harsh Working Environments: Adapted to high oil temperature, high vibration, and high dust conditions of the transmission; oil-resistant, corrosion-resistant, and anti-aging; cylinder inner wall is not easily worn, extending overall service life.
Product Specifications
- Compatible Models: 3T/5T/6T/7-ton wheel loaders
- Material: High-strength ductile iron High-quality aluminum alloy (customizable)
- Structure: Annular cylinder structure with built-in sealing groove, piston movement track, and reserved hydraulic oil interface.
- Dimensions: Outer diameter, inner diameter, height, and mounting hole positions strictly adhere to original factory standards.
- Sealing Groove Specifications: Standard-sized sealing groove, compatible with original factory seals, ensuring a tight fit and leak-proof seal.
- Inner Wall Precision: Strictly controlled inner wall roundness and cylindricity errors, smooth surface, and smooth piston sliding without jamming.
- Installation Characteristics: Direct assembly in situ, precise connection with gearbox housing, hydraulic circuit, and piston body, requiring no modification.
- Pressure Resistance: Compatible with normal gearbox hydraulic pressure, resistant to bulging, deformation, and leakage, high compressive strength.
- Temperature Range: -30℃~+110℃, resistant to high temperatures and gearbox oil corrosion, non-aging and non-deteriorating.
- Operating Performance: Smooth hydraulic oil flow, stable piston movement, thorough gear shifting engagement and disengagement, and no jamming.
- Product Advantages: Excellent sealing, high rigidity, wear-resistant and durable, easy installation, high interchangeability, low failure rate, and long service life.