China Track Bottom Roller Supplier

Qiansheng Heavy Industry supplies Track Roller for SY245 excavator undercarriage. Factory direct OEM supply with heat-treated rollers, precision machining, strict inspection ensure stable sealing and durability. OEM replacement for Sany fleet Used in mining and construction equipment. Samples and drawings for bulk orders.

Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. supplies Track Roller for Hitachi ZX470 for excavator undercarriage replacement and OEM maintenance. Designed for mining and heavy construction use, this roller is produced with forged steel, CNC machining, and heat treatment to improve wear resistance and sealing stability. It helps reduce downtime, supports stable track movement, and fits ZX470/ZX470LC models. Many buyers choose us for consistent quality control, stable delivery time, and practical field performance in harsh working conditions.

At Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., we supply Track Roller for Sany SY60 designed for stable undercarriage performance in excavators working under continuous load conditions. Manufactured with forged steel and precision heat treatment, each roller is built for consistent alignment, reduced track vibration, and longer service intervals. We support bulk order, OEM customization, and fast shipment for distributors and contractors needing reliable replacement parts for SY60 machines in construction and mining environments.

As a manufacturer of undercarriage parts based in Quanzhou, we supply Carrier Roller for Komatsu PC300-7 for excavators working in mining and construction environments. Our roller is designed with heat-treated steel, stable sealing performance, and strict dimensional control. Customers choose us for consistent fit, stable rotation under load, and reduced maintenance downtime. We support OEM and wholesale orders with full inspection before shipment.

At Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., we supply Track Roller for Komatsu PC60-5 for excavator undercarriage replacement and maintenance. Each unit is manufactured through forging, CNC machining, heat treatment, and full inspection. We focus on sealing performance, wear resistance, and dimensional stability for mining and construction environments. OEM and bulk orders are supported with stable production records and traceable quality control, helping reduce downtime in real field operations.

Quanzhou Qiansheng Machinery supplies Track Adjuster Assembly for Komatsu PC400-7 208-30-54140, designed for stable undercarriage tension and performance. Manufactured in Quanzhou factory with heat-treated steel, CNC machining and strict inspection, suitable for mining and construction machines OEM

Qiansheng Heavy Industry supplies durable Track Adjuster Assembly for Komatsu PC200-8 20Y-30-42130 designed for stable track tension and long working life under demanding excavation conditions. Manufactured with strict heat treatment and precision machining, our assemblies are widely used by repair contractors, machinery dealers, and mining equipment service companies looking for reliable aftermarket undercarriage parts with stable supply and OEM customization support.

At Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., we manufacture the Track Adjuster Cylinder for Hitachi ZX200-3 9243267 for customers who demand stable track tension, longer undercarriage life, and lower downtime costs. Built with precision-honed seamless steel tubing, heavy-duty polyurethane seals, and anti-corrosion chrome-plated components, our grease cylinder delivers reliable sealing performance in mining, quarry, and heavy excavation conditions. Ideal for wholesalers, machinery dealers, repair workshops, and fleet owners seeking factory-direct purchasing with dependable OEM quality.

Qiansheng Heavy Industry supplies durable and precision-engineered Track Adjuster Assembly for Doosan DX225LC K1038864 designed for demanding excavator working conditions. Manufactured with high-strength steel, advanced heat treatment, and strict quality inspection, our assemblies provide stable track tension, reduce abnormal wear, and extend undercarriage service life. We support OEM and bulk purchasing requirements for global distributors, contractors, and machinery repair companies seeking reliable aftermarket undercarriage solutions.

Built for demanding excavation and earthmoving conditions, the Qiansheng Track Adjuster Assembly for Kobelco SK200-8 YN54D00014F1 delivers stable track tension, improved undercarriage protection, and long service life. Manufactured with precision machining and strict heat treatment processes, this assembly is widely chosen by equipment dealers, repair workshops, and construction contractors looking for durable OEM-quality replacement parts with fast supply and reliable support.

As a professional manufacturer and factory in China, Quanzhou Qiansheng Heavy Industry offers premium Track Adjuster Assembly for Volvo EC210B 14562924 with full OEM compatibility. Unlike low-grade aftermarket alternatives, our unit adopts integral forging and standardized heat treatment, featuring anti-leakage sealing, precise tension control and heavy-load durability. With over 20 years of undercarriage production experience, we pass strict pressure and sealing tests for every piece, support bulk supply and OEM service, and export globally to help clients cut maintenance costs effectively.

Qiansheng Heavy Industry supplies durable Track Adjuster Assembly for Hitachi ZX200-3 9243267 designed for stable track tension, reduced undercarriage wear, and long service life in demanding construction and mining environments. Our factory-tested assemblies feature high-strength materials, precision machining, and reliable sealing performance, making them an ideal choice for distributors, repair companies, and excavator owners seeking dependable OEM replacement parts.

Built by Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., the Track Adjuster Grease Cylinder for Caterpillar 320D 239-4390 is engineered for stable track tension, long sealing life, and reliable performance in mining, quarry, and heavy excavation conditions. Designed with precision-honed steel tubing and high-pressure polyurethane seals, this factory-direct undercarriage component helps reduce grease leakage, track derailment, and costly downtime for Caterpillar 320D excavators worldwide.

Qiansheng Heavy Industry supplies high-performance Track Adjuster Grease Cylinder for ZAX200 excavators, designed for stable track tension adjustment and long-term durability in demanding construction and mining conditions. Manufactured with precision machining and strict heat treatment processes, our grease cylinders offer excellent sealing performance, reduced oil leakage, and reliable service life. As a professional undercarriage parts manufacturer in China, we support OEM customization, fast delivery, and global wholesale procurement for excavator parts distributors and contractors.

We, Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., supply high-performance Track Adjuster Grease Cylinder for Komatsu PC200 20Y-30-29130 with strict factory inspection and stable hydraulic sealing performance. Designed for heavy-duty excavator undercarriage systems, it ensures smooth track tension adjustment, reduces downtime, and extends service life. Buyers choose our OEM-quality parts for reliable fit, fast delivery, and proven field durability in mining and construction projects worldwide.

Sourced from Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., we supply Track Adjuster Grease Cylinder for Caterpillar 320D 239-4382 with heavy-wall seamless steel, precision honed bore and premium seals, ensuring stable track tension, reduced leakage and lower downtime. Factory direct OEM quality for global buyers seeking reliable excavator undercarriage parts qual

At Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., we manufacture the Excavator Track Guide for Komatsu PC200-7 20Y-30-31160 for mining and construction use. Made from high-strength steel with CNC precision, it reduces derailment risk, protects rollers, extends undercarriage life, and ensures OEM replacement quality with factory-direct supply and stable global delivery.

We supply high-precision Excavator Track Guard for Komatsu PC200-8 20Y-30-11312 with strict OEM standards. Designed for heavy-duty protection of undercarriage systems, this part ensures stable track alignment, reduced wear, and longer service life. Ideal for distributors and repair contractors seeking durable and cost-effective excavator spare parts with fast global delivery and consistent quality control.

As a professional manufacturer of undercarriage parts, Quanzhou Qiansheng Heavy Industry supplies high-quality Excavator Track Guard for Doosan DX225LC 200112-00022. Built with high-strength alloy steel and precision forged, this track guard delivers superior impact resistance and durability. Designed for perfect compatibility with Doosan DX225LC, it effectively protects tracks and undercarriage components in mining, construction, and earthmoving projects. As a reliable supplier, we offer factory-direct pricing, strict quality control, and global after-sales service.

We supply Excavator Track Guide for Kobelco SK200 YN63D00003P1 designed for SK200 excavators to prevent track derailment, reduce roller wear, and extend undercarriage life. Factory-direct OEM supply with heavy-duty steel, precision CNC fit, stable performance in harsh working conditions.

At Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., we supply high-quality Excavator Track Guard for Volvo EC210B 1181-00061, engineered to protect undercarriage systems and extend service life. With strict manufacturing control, precision fit, and durable steel structure, part ensures stable

As a leading manufacturer of excavator undercarriage parts, Quanzhou Qiansheng Heavy Industry offers the premium Excavator Track Guide for Hitachi ZX200-3 8097015, forged from high-grade 50Mn steel with precise heat treatment. Designed for Hitachi ZX200-3 excavators, this track guide ensures accurate belt alignment, reduces wear, and delivers 30% longer service life than generic models. As a trusted supplier with 20+ years of experience, we provide OEM/ODM services, strict quality control, and global after-sales support for your heavy-duty projects.

Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. supplies Excavator Track Guide for Caterpillar 320 240-2988 designed to prevent track derailment and improve undercarriage stability. Built with high-strength thick steel and precision CNC machining, it ensures reliable performance in mining, quarry, and heavy-duty construction conditions, helping buyers reduce downtime and maintenance cost with factory-direct quality supply.

Based on years of manufacturing experience in excavator undercarriage parts, we developed the Excavator Track Guide for Caterpillar 320 240-2988  specifically for CAT 320 series machines. Its main function is to keep the track chain properly aligned and prevent derailment, side deviation, and abnormal wear when operating on complex terrains such as rocky ground, slopes, mining sites, and heavy construction environments.

In real working conditions, many low-cost aftermarket parts fail due to insufficient steel thickness or weak structural design, often leading to deformation and unexpected downtime. Our product is engineered with reinforced structure and OEM-standard precision to ensure long-term stability and safer machine operation.

Technical Specifications

· OEM Reference: 240-2988

· Compatible Model: Caterpillar 320 / 320B / 320C / 320D

· Product Type: Track Guide / Track Guard

· Material: Heavy-duty high-strength steel plate

· Manufacturing Process: CNC precision machining + robotic welding

· Surface Treatment: Industrial anti-rust coating

Komatsu	PC20 PC30 PC40 PC55 PC60 PC100 PC120 PC180 PC200 PC210 PC220 PC240 PC260 PC300 PC360 PC400 PC450 D20 D30 D31 D50 D60 D65 D61 D80 D85
Hitachi	EX30 EX30 EX55 EX60 EX100/120 EX150 EX200 EX210 EX220 EX300 EX350 EX400 EX450 ZX55 ZX70 ZX200 ZX240 ZX270 ZX330 ZX350 FH150 FH200 FH300/330 UH07 UH13 UH063 UH081 KH70 KH100 KH125 KH150 KH180
Caterpillar	E70 E120 E240 E300B E305.5 E307 E311/312 E320 E322 E325 E330 E345 E450
	CAT215 CAT225 CAT235 D3C D4D D4H D4E D5 D5H D5H D6D D6E D6H D7G
Kobelco	SK07C SK03N2 SK55 SK60 SK100 SK20 SK140 SK200 SK210 SK220 SK230 SK350 SK260 SK30 SK310 SK320 SK330 SK350 SK450 K907 PH335 PH440 PH550 PH7055 BM500 5045 7035 7045 CKC2500
Sumitomo	SH60 SH120 SH20 SH220 SH280 SH300 SH350 LS108 LS118 LS2800
Kato	HD250 HD307 HD450 HD700 HD770 HD800 HD820 HD1250
Hyundai	R55 R60 R80 R130 R200 R210 R215 R225 R230 R290 R320 R450
Daewoo/Doosan	DH55 DH60 DH150 DH220 DH280 DH300
Samsung	SE210 SE280 SE350
Volvo	EC55 EC140 EC210 EC240 EC290 EC360 EC460
Mitsubishi	MS110 MS180
Yuchai	YC35 YC60 YC65 YC85

 

Advantages

High Impact Resistance in Harsh Conditions

In mining and quarry applications, the track guide is exposed to continuous lateral impact. Compared with standard aftermarket parts, our reinforced steel structure maintains shape stability even under heavy load, significantly reducing breakdown risks.

 

Accurate Track Alignment to Reduce Wear

We strictly follow OEM dimensions to ensure the track chain runs centered on the rollers. This reduces friction between track links and roller flanges, effectively extending the service life of both components.

 

CNC-Machined Mounting Holes for Stable Installation

All mounting holes are precision CNC-machined to ensure perfect fit with the CAT 320 undercarriage frame. This provides better bolt stability and prevents loosening or shear failure during heavy-duty operations.

 

Full Undercarriage Protection Function

Beyond alignment, the track guide also acts as a protective barrier, preventing rocks, mud, and debris from entering between the track chain and rollers, reducing seal damage and track jamming risks.

 

Comparison with Market Alternatives

· Standard aftermarket parts: thin steel, easy deformation, shorter lifespan

· Low-cost replacements: poor welding quality, inaccurate dimensions, higher derailment risk

·  Qiansheng product: reinforced structure + OEM standard + field-proven durability  

In long-term operation, our product significantly reduces downtime and replacement frequency, lowering the total cost of ownership (TCO).

 

Supply Capability

Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. provides stable global supply for construction machinery undercarriage parts:

· OEM/ODM customization available (structure, size, color)

· Industrial anti-rust protection + export-grade packaging

· Suitable for mining, heavy-duty, and continuous operation environments

· Stable production capacity for bulk orders

 

Application

· Mining operations

· Construction projects

· Quarry industry

· Infrastructure engineering

· Heavy earthmoving applications

Why Choose Us

We specialize in excavator undercarriage components and understand the real failure points in harsh working environments. Our design philosophy focuses on durability, stability, and cost efficiency rather than low-price competition.

 

Contact for Export Orders

· Export Manager: Mr. Wu

· WhatsApp: +86 13799896866

· Supply Type: Factory Direct Manufacturer

 

Qiansheng Heavy Industry supplies durable Excavator Connecting Rod for Doosan DX140 2155-1306B with stable dimensional accuracy and reliable wear resistance for demanding construction and mining conditions. Our forged and precision-machined connecting rods are tested before delivery to ensure smooth fitting, long service life, and reduced downtime. We support OEM customization, fast quotation, and global shipment for excavator spare parts buyers.

As a leading manufacturer & supplier of excavator undercarriage parts, Quanzhou Qiansheng Heavy Industry offers the premium Excavator Connecting Rod for Caterpillar 320 087-5803. Forged from high-strength alloy steel and heat-treated for maximum durability, this rod delivers precise fit, superior fatigue resistance and longer service life than generic alternatives. OEM quality, ISO 9001 & CE certified, direct from factory with competitive pricing and global fast delivery.

Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. supplies high-strength Excavator Connecting Rod for Kobelco SK200 2406P4823D1 for heavy-duty excavation and mining applications. Manufactured with reinforced structural steel and precision CNC machining, our connecting rod delivers stable bucket linkage performance, reduced hydraulic cylinder stress, and longer service life. Ideal for distributors, repair companies, and equipment fleet owners seeking reliable factory-direct replacement parts for Kobelco excavators.

Qiansheng Heavy Industry supplies high-strength Excavator Connecting Rod for Komatsu PC200-8 205-70-73130 designed for stable bucket linkage performance and long service life under demanding working conditions. Manufactured with precision machining and strict heat treatment processes, our connecting rods offer reliable fitment, wear resistance, and excellent durability for mining, construction, and earthmoving projects. We support OEM customization, fast delivery, and global wholesale purchasing needs.

As a professional manufacturer and factory supplier of construction machinery undercarriage parts, Quanzhou Qiansheng Heavy Industry provides premium Excavator Connecting Rod for Hitachi ZX200-3 8074315 with reinforced steel structure and 4-axis CNC precision processing. Compared with ordinary aftermarket parts, our 8074315 connecting rod features induction-hardened pivot points and optimized grease grooves, effectively avoiding bending, pin hole deformation and hydraulic cylinder damage. It perfectly fits Hitachi ZX200-3 20-ton excavator, stable for mining, quarry and heavy construction sites, supporting factory wholesale, OEM customization and global direct supply.

Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. supplies durable Excavator H-Link for Caterpillar 320D 241-7325 designed for demanding excavation, mining, and earthmoving applications. Manufactured with high-strength steel, precision CNC machining, and reinforced welding technology, our H-link helps improve bucket stability, reduce pin wear, and maintain consistent breakout force. Ideal for wholesalers, machinery dealers, repair contractors, and fleet owners seeking reliable factory-direct replacement parts with stable quality and long service life.

Qiansheng Heavy Industry supplies high-strength Excavator H-Link for Doosan DX225 K1002294 designed for demanding excavation and earthmoving applications. Manufactured with precision forging, strict heat treatment, and accurate machining processes, our H-link provides stable bucket linkage performance, excellent wear resistance, and long service life. Ideal for aftermarket replacement and OEM procurement, this Doosan DX225 H-link helps reduce downtime and maintenance costs for contractors, distributors, and machinery repair companies worldwide.