60348678 Plunger Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

60348678 Plunger Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

This plunger is the core working component of the hydraulic system. Working in conjunction with the cylinder, distributor plate, and sealing components, it reciprocates to perform oil suction and discharge operations through volume changes, thus converting hydraulic energy. It stabilizes oil pressure and flow, ensuring sensitive equipment operation, uniform power output, and supporting the efficient operation of the hydraulic assembly.
This SANY original plunger undergoes quenching and hardening, precision honing, and stress relief treatment, resulting in precise roundness and strong fatigue resistance. It is suitable for harsh operating conditions such as high-pressure impact, high-frequency reciprocating motion, and continuous heavy load. Old plungers are prone to scoring, wear, deformation, and delamination, leading to internal hydraulic leakage, weak pressure relief, sluggish operation, and delayed response. In severe cases, this can cause abnormal noises from the assembly and equipment shutdown. This product can be replaced in situ without damage, suitable for maintenance, overhauls, and bulk stocking, quickly restoring hydraulic power and reducing maintenance costs.

【Core Technical Parameters】

— Product Model: 60348678
— Product Name: Plunger
— Product Type: Hydraulic Pump Motors – High-Pressure Power Generation and Energy Conversion Core Components
— Compatible Models: Compatible with SANY hydraulic pumps and motor assemblies of corresponding specifications, supporting non-destructive replacement.
— Main body material: High-hardness special alloy, pressure-resistant, wear-resistant, impact-resistant, and not easily damaged or deformed.
— Working conditions: Suitable for high-pressure impact, high-frequency reciprocating, and continuous heavy-duty operations.
— Structural Design: One-piece precision column with uniform outer diameter, accurate roundness, and balanced stress distribution.
— Performance characteristics: Stable reciprocating operation, high volumetric efficiency, good pressure holding performance, and low power loss.
— Surface treatment: Ultra-precision honing + hardening and rust prevention treatment, resulting in high gloss, corrosion resistance, and aging resistance.
— Operating characteristics: High-frequency reciprocating oil suction and discharge, efficiently completing hydraulic power conversion.
— Dimensional accuracy: Original factory precision engineering standards, precise gaps, and high degree of sealing fit.
— Installation method: Original installation without modification, saving time and increasing efficiency in maintenance and disassembly.
— Working condition adaptability: fatigue resistant, high pressure resistant, and not prone to failure during long-term high-frequency operation.
— Service life: High hardness, excellent wear resistance, stable and durable under long-term high-pressure operation.

The 60348678 plunger is a core high-pressure component of Sany’s original hydraulic system. It features high precision, high pressure resistance, tear resistance, and stable power output, making it compatible with hydraulic pumps and motor assemblies in construction machinery. It effectively solves problems such as internal hydraulic leakage, power pressure loss, motion stagnation, delayed response, and weak operation, improving equipment hydraulic efficiency and operational performance, reducing downtime, and lowering maintenance costs. It is a high-quality original part for equipment repair, maintenance, and bulk stocking.

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1 60348683 Piston
3 60348705 Plug
5 60348687 Bushing
6 60348703 O-ring 95113-02400
7 60348647 Housing
9 60348689 Spring
13 60348678 Plunger
15 60348684 Spring B0111-13073
16 60348691 Brake pads
17 60348685 Bearing
24 60348681 Sloping plate
25 60348690 Brake pads B0441-96007
28 60348692 Brake piston
31 60348700 O-ring 95123-26000
33 60348695 O-ring 20461-65213
34 60348699 Oil seal
36 60348676 Cylinder block
38 60348679 Return Disk
41 60348686 Bearing B0141-69004
43 60348694 retaining ring
46 60348682 Steel ball 20461-69205
48 60348677 Oil Distribution Plate
51 60348680 Spherical bushing
52 60348696 retaining ring
54 60348702 Plug 21961-95025
55 60348693 O-ring 20461-75201
56 60348675 axis
57 60182019 Piston Motor Seal Repair Kit

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