Doosan DX300 Track Adjuster Cylinder Assembly OEM Spec Recoil Tension Part
Product Details
| Weightcapacity: | Supports Heavy Loads | Specification: | SD16 SD22 SD32 Track Chain Track Shoe |
|---|---|---|---|
| Package: | Standard Export Packaging | Trackshoewidth: | Available In Multiple Widths |
| Appliion: | Crawler Excavator & Bulldozer | Type: | Crawler Excavator |
| Category: | Excavator Undercarriage Parts | Process: | Forging /casting |
| Compatibility: | Fits Various Excavator Models | Sale Place: | Guangzhou China |
| Ship Shipment: | OEM Productin | Mateial: | 50Mn/40MnB |
| Color: | Typically Black Or Rust-resistant Coating | ||
| Highlight |
Doosan DX300 track adjuster cylinder,OEM spec recoil tension part,excavator undercarriage cylinder assembly |
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Product Description
Premium Doosan DX300 track adjuster cylinder assembly, OEM spec DX300 excavator track tension cylinder. Heavy-duty Doosan DX300 recoil cylinder assembly with forged steel body and imported seals, direct bolt-on replacement for DX300 undercarriage repair.
- Cylinder Processing Technology: High-strength alloy steel cylinder body forged by 2500-ton hydraulic press, with deep boring and honing treatment. Inner wall roughness Ra ≤ 0.2μm, ensuring smooth piston movement and minimal seal wear.
- Piston Rod Surface Technology: High-frequency quenching + hard chrome plating process. Surface hardness reaches HRC 55–60, chrome coating thickness 0.03–0.05mm, with excellent wear resistance and scratch resistance.
- Sealing System Technology: Multi-stage combined seal structure with imported NOKkkk/Parker seals. Includes dust seal, rod seal and buffer seal, ensuring zero leakage under high pressure and long service life.
- Spring Strengthening Technology: 60Si2Mn alloy spring steel with shot peening treatment, improving fatigue strength by 40%. Stable elasticity under long-term repeated compression, not easy to deform and fail.
- Raw Material Cutting: Precision sawing of alloy steel bar and spring steel to specified size.
- Cylinder Forging: 2500-ton hydraulic press forging to form cylinder blank, refining internal grain.
- Rough Machining: CNC turning and boring to form basic dimensions, reserving machining allowance.
- Heat Treatment: Quenching and tempering treatment to achieve required hardness and toughness.
- Precision Honing: Deep hole honing of cylinder inner wall to achieve mirror finish.
- Rod Processing: Piston rod turning, high-frequency quenching and hard chrome plating.
- Spring Manufacturing: Spring steel coiling, heat treatment and shot peening strengthening.
- Assembly & Testing: Assemble cylinder, seals and spring, 100% pressure and fatigue test.
- Warranty: 6-month comprehensive warranty against manufacturing defects and oil leakage
- Fast Delivery: Regular models in stock, 1–2 days processing; sea/air/express shipping worldwide
- Customization: Custom size and parameters for special models (MOQ 20 sets)
- Technical Support: 24/7 online guidance, installation videos and maintenance manuals
- Full Range Supply: Complete Doosan undercarriage parts (track roller, idler, sprocket, etc.)
- Bulk Discount: Up to 30% discount for bulk orders
- After-Sales: Professional engineering team to solve quality and installation issues quickly
Q1: Which excavator models does this track adjuster fit?
A1: This Doosan DX300 track adjuster cylinder assembly is exclusively designed for Doosan DX300 series excavators. It is a high-performance DX300 excavator track tension cylinder, robust Doosan DX300 recoil cylinder assembly, heavy-duty heavy-duty DX300 track adjuster, essential DX300 excavator undercarriage spare part, precision OEM spec track tension cylinder assembly and reliable replacement Doosan track adjuster assembly.
Q2: What are the common symptoms of a failed track adjuster?
A2: Common symptoms include: loose track that cannot be tensioned, track deviation during walking, abnormal impact noise from undercarriage, grease leakage from cylinder, and accelerated wear of track and rollers. Replacing with our replacement Doosan track adjuster assembly can fully restore normal undercarriage performance.
Q3: Is installation complicated? What should be noted?
A3: Installation is straightforward. This OEM spec track tension cylinder assembly is a direct bolt-on replacement. Pay attention to: clean the mounting surface, inject grease slowly after installation to adjust proper tension, and exhaust air sufficiently. We provide detailed installation manuals and video guidance.
Q4: How to properly adjust track tension?
A4: Inject grease through the grease nipple until the track sag is 20–30mm (measured between the idler and the first track roller). Too tight will accelerate wear of undercarriage parts; too loose will cause track deviation and derailment. Check and adjust every 500 working hours.
Q5: What is your warranty policy?
A5: We offer a 6-month warranty against manufacturing defects. If oil leakage, spring deformation or cylinder cracking occurs due to material or workmanship issues within the warranty period, we will replace it free of charge. This warranty does not cover damage from improper installation, over-tensioning or severe impact.
Product Highlights
Premium Doosan DX300 track adjuster cylinder assembly with forged steel body and imported seals. Features high-strength alloy steel construction, hard chrome plated piston rod, and multi-stage sealing system. Direct bolt-on replacement with 6-month warranty and global shipping.
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