OLA Factory Direct Sales 45HRC-55HRC Surface Hardness Excavator Compression Track Adjuster Steel Metal Recoil Recoil Spring Assy Spring
EXCAVATOR RECOIL SPRING
This high-performance Excavator Recoil Spring delivers exceptional track tension control for all standard and heavy-duty excavator models.
Engineered with precision for optimal undercarriage performance, this essential component (also known as track adjuster spring, track tensioner spring, or undercarriage tension assembly) ensures consistent crawler track alignment while protecting critical drivetrain components.
PREMIUM ALLOY STEEL CONSTRUCTION:
Manufactured from oil-tempered 60Si2Mn or equivalent spring steel with 55-60 HRC hardness rating for maximum durability in extreme conditions
ADVANCED HEAT TREATMENT PROCESS:
Multi-stage tempering ensures optimal mechanical properties with superior fatigue resistance even under continuous heavy loading
APPLICATION & BENEFITS
Perfect for excavator undercarriage rebuilds, preventive maintenance programs, and performance upgrades. This recoil spring helps prevent costly track derailment, reduces excessive sprocket wear, and minimizes idler bounce in challenging digging environments. The optimized tension system decreases fuel consumption by reducing unnecessary friction while extending the service life of all track components.
Compatible with all major excavator models in the 10-50 ton operating weight class. Direct replacement for OEM specifications with no modifications required.
| EXCAVATOR RECOIL SPRING SPECIFICATIONS |
| Product Name |
Excavator Recoil Spring |
| Keywords |
Recoil Spring |
| Material |
60Si2MnA, 60Si2CrA, 60Si2CrVA |
| Technics |
Forging &Casting |
| Color |
Black,Grey,Yellow |
| Package |
Standard Export Pallet |
| Size |
Follow OEM Strictly |
| Suitable |
Excavator Bottom Roller |
| After-sales Service Provided |
Video Technical Support |
| Surface Hardness |
45HRC~55HRC |
| Weight |
20-50kg Or Customized |
| Manufacturing Process |
Steel Casting |
| Quality |
100%Tested |
| OEM |
OEM Services Provided |
| MOQ |
1 Piece |
| We support customization of excavator undercarriage parts of various specifications and purposes |
| Mode |
A |
B |
C |
D |
E |
F |
G |
H |
| D203/5,D21 |
194 |
147 |
82 |
16 |
156 |
135 |
106 |
11 |
| D30-12 |
240 |
95 |
102 |
17 |
198 |
170 |
124 |
15 |
| D50,D55 |
310 |
238 |
110 |
18 |
233 |
200 |
173 |
16 |
| D60/65A/P/PL-6/8,T165 |
320 |
258 |
114 |
19 |
245 |
212 |
196 |
16 |
| D80A-7 |
380 |
306 |
136 |
21 |
257 |
220 |
210 |
16 |
| D80A-12,TY180 |
380 |
306 |
136 |
21 |
257 |
220 |
210 |
16 |
| D85A-18,TY220 |
380 |
306 |
136 |
23.5 |
257 |
220 |
210 |
16 |
| D150A-1,TY320 |
408 |
322 |
140 |
26.5 |
298 |
255 |
244 |
18 |
| D4/C/D/E |
298.35 |
223 |
89 |
17 |
238 |
204 |
140 |
16 |
| D5/B |
317.5 |
242 |
101.6 |
17 |
239 |
204 |
172 |
16 |
| D6B/C/D 963 |
331.2 |
264.5 |
114.3 |
20.5 |
246.4 |
209.5 |
189 |
16.1 |
| D7G,973,977 |
371 |
291 |
114 |
23.5 |
260 |
224 |
207 |
16 |
| D7E |
368 |
291 |
114 |
21 |
260 |
224 |
207 |
16 |
| D7H |
0 |
279 |
0 |
0 |
255.5 |
222.5 |
206 |
16 |
| D8H/K |
428.6 |
336.6 |
133.4 |
27 |
298 |
255 |
246 |
0.5 |
| HTI00 |
370 |
293.5 |
114 |
17 |
258 |
220 |
208 |
15 |
| HT100 |
370 |
292 |
114 |
17 |
258 |
220 |
210 |
15 |
| T120 |
368 |
286 |
114 |
17 |
257 |
222 |
210 |
20 |
| T120 |
370 |
292 |
114 |
17 |
258 |
220 |
210 |
15 |
| T140 |
370 |
296 |
114 |
21 |
258 |
220 |
210 |
17.5 |
| HT150 |
370 |
294 |
136 |
23 |
258 |
220 |
210 |
17.5 |
| T170 |
371 |
295 |
144 |
21.5 |
267 |
230 |
224 |
14.5 |
| T500 |
509.5 |
400 |
130 |
29 |
328 |
284 |
300 |
|
| T90 |
298 |
217 |
100 |
18 |
216 |
185 |
173 |
21 |
SUPERIOR IMPACT ABSORPTION AND PROTECTION SYSTEM
The recoil spring is typically located inside the track frame or track adjuster assembly, working in conjunction with the recoil cylinder to absorb and distribute the forces generated during excavator operation, including digging, lifting, and traveling.
This critical assembly allows for controlled track tension while absorbing impacts to the undercarriage without transferring force to sensitive components like final drives and sprockets. As an impact absorption device, the recoil spring contracts upon impact while continually providing measured tension in the track through the control of a cylinder.
ADVANCED SURFACE TREATMENT FOR EXTENDED LIFESPAN
The surface of the recoil spring cylinder must be chrome-plated for enhanced resistance to wear and corrosion. The material selected for cylinder production is typically a classic tempered steel containing a specific percentage of carbon to achieve maximum toughness.
The quality and efficiency of recoil springs depend significantly on their production process, which typically progresses through three critical
Pphases: forming (either cold or hot), heat treatment, and post-treatment. In hot forming, the bars are heated to approximately 930°C before winding, then cooled in oil and hardened.
COMPREHENSIVE UNDERCARRIAGE PROTECTION SYSTEM
The excavator recoil spring, also known as a track adjuster spring or tension spring, is a vital component of an excavator's undercarriage system responsible for providing tension and maintaining proper track tension on the excavator's tracks (whether crawler tracks or rubber tracks).
UNIVERSAL COMPATIBILITY DESIGN
Direct OEM replacement specifications ensure perfect fit across all major excavator models in the 10-50 ton class with no modifications required, simplifying inventory management and maintenance planning.
ADVANTAGES OF CHOOSING OUR LOWER ROLLERS
1. OEM part number guidance
2. Produce according to drawings.
3. We have advanced technology and 100% tested before delivery.
4. Fast delivery and competitive price.
5. The larger the quantity you order, the better price and faster delivery we can provide.
Q1. How do you ensure the parts you send are high quality?
Once we receive the raw material we will do the chemical composition testing and in production, our QC will do the random inspection of every lot of the dimensions, appearance, mechanical properties hardness, impact value, etc. To make sure every part is qualified.
Q2. What is the payment term?
Usually 50% deposit and the balance before the shipment or against the BL copy. TT, lc is welcome.
Q3. If we want to do our logo, is that acceptable?
Yes, OEM & ODM are welcome.
Q4. What's the lead time?
For the normal order, it usually takes 15-30 days after receiving the deposit as agreed.
Q5. What kind of package do you offer?
Normally we use the export standard pallets, if you have any special requirements, we can discuss them.
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