Dingtai manufactures Samsung spring coils—high-tensile track tension springs that maintain crawler track tension and absorb undercarriage shock loads.
We provide factory-direct supply and comprehensive OEM manufacturing services for global equipment distributors, rental fleets, and heavy machinery operators.
Our spring coils prevent track derailment and excessive undercarriage wear, reducing downtime caused by broken or fatigued tension springs.
With 20+ years of manufacturing experience and ISO9001/SGS certified processes, Dingtai delivers consistent quality and traceable production standards.
Each spring uses high-grade alloy steel and controlled heat treatment, ensuring stable load capacity and long fatigue life under severe working conditions.
Core Selling Points
- Premium Alloy Spring Steel: Manufactured from 60Si2Mn or equivalent grade, providing high yield strength and fatigue resistance for heavy load cycles.
- Precision Heat Treatment: Controlled hardening and tempering delivers uniform HRC 45–52 hardness, preventing sagging and crack propagation under repeated stress.
- Global Brand Compatibility: Direct replacement for Samsung SE-series and legacy Volvo excavator models, with accurate part number cross-referencing support.
- ISO9001/SGS Certified: Every batch undergoes dimensional, load, and surface inspection under certified quality systems before export release.
Our catalog of Samsung Spring Coil includes various specifications, fully compatible with Samsung and Volvo excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 60Si2Mn / 55CrSi alloy spring steel |
| Heat Treatment | Hardening + tempering, double shot peening |
| Surface Hardness | HRC 45–52 |
| Process | CNC hot coiling, pre-setting, magnetic particle inspection |
| Certification | ISO9001, SGS |
| Warranty | 12 months or 2,000 working hours |
2. OEM & Customization
We match customer drawings, samples, or part numbers, producing custom outer diameters, free lengths, coil counts, and end configurations to OEM standards.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Excavator | Samsung / Volvo | Samsung SE130LC-2, SE210LC-2, SE280LC-2, SE350LC-2; Volvo EC equivalent series |
| Wheel Excavator | Samsung / Volvo | Samsung MX series; Volvo EW equivalent series |
4. Delivery & Logistics
Factory-direct pricing with flexible MOQ, reinforced export crates, and reliable sea/air freight from Chinese ports to global destinations.
Technical Features
The spring coil works as a tension force accumulator, maintaining constant idler pressure to keep track chains engaged and stable during operation.
Shot peening creates compressive stress on the coil surface, delaying fatigue crack initiation and extending service life under impact loading.
Protective electrostatic coating and rust-preventive oil resist corrosion in wet, abrasive, or high-salt mining environments.
Applications
- Mining
- Road Construction
- Quarrying
- Demolition
- Heavy Civil Infrastructure
Frequently Asked Questions
What is the MOQ for Samsung spring coils?
MOQ is 1 piece for stock specifications; custom production generally starts from 20 pieces depending on dimensions.
How long is delivery?
Stock items ship within 7 days; custom production takes 25–35 days before dispatch.
What material is used?
We use 60Si2Mn or 55CrSi alloy spring steel, equivalent to international spring steel grades.
What is the heat treatment depth and hardness?
Spring coils are through-hardened and tempered to HRC 45–52, achieving uniform mechanical properties across the wire section.
What warranty do you provide?
12 months or 2,000 working hours, covering fatigue failure under normal operating conditions.
Can you match my part number?
Yes, send OEM part numbers, drawings, or samples; we cross-reference and confirm dimensions before production.
Maintenance Guide
- Inspect tension springs for surface cracks, corrosion, or coil gap changes every 500 working hours.
- Check track sag and adjust tension according to OEM specifications to avoid overloading the spring coil.
- Remove packed mud and debris from the tension assembly to prevent abrasive wear and moisture retention.
- Replace spring coils in pairs when sag exceeds factory limit or after impact damage is visible.
- Apply rust-preventive coating on exposed coil surfaces during long-term storage or marine transport.