Quanzhou Mingzhu Technology Development Co., Ltd
Products
Manufacturer of a wide range of products which include 2D07 2B25 Undercarriage Sprocket For Excavator Wear Resistance 172111-29110 /,M18x50 Track Bolt Bulldozer Components High Tensile Strength And Heavy Duty Fastening,Mining Grad...
MOQ: 2
Price:
| Teeth Quantity | 14T |
| Applicable Excavator | Yanmar D07, B07, VIO17, VIO15, YB171 |
| Delivery Time | 3-5 days |
| Packaging Details | Export pallet packaging |
| Mounting Holes | 8 pcs |
| Supply Ability | 1500 MT/month |
| Payment Terms | L/C,D/A,D/P,T/T |
| Raw Material | 35MnB Forged Steel |
| OEM Part No. | 172111-29110 / UR072Z213 |
| Product Name | 2D07 Sprocket |
| Certification | CE、CNAS、COC、SGS、ISO |
| Model Number | 2D07 |
| Place of Origin | Fujian, China |
| Brand Name | STST |
MOQ: 2
Price:
| Strength Grade | 12.9 Grade |
| Alternative Material | 35CrMo Alloy Steel |
| Packaging Details | Export pallet packaging |
| Optional Finish | Phosphate Coating |
| Supply Ability | 1500 MT/month |
| Payment Terms | D/A,D/P,T/T |
| Thread Type | Metric Coarse Thread |
| Delivery Time | 3-5 days |
| Material | 40Cr Alloy Steel |
| Surface Finish | Black Oxide |
| Certification | CE、CNAS、COC、SGS、ISO |
| Model Number | M18x50mm |
| Brand Name | STST |
| Place of Origin | Fujian, China |
MOQ: 2
Price:
| Thread Type | Metric Coarse Thread |
| Supply Ability | 1500 MT/month |
| Payment Terms | D/A,D/P,T/T |
| Hardness | HRC 32–39 |
| Delivery Time | 3-5 days |
| Packaging Details | Export pallet packaging |
| Heat Treatment | Integral Quenching & Tempering |
| Product Type | Track Bolt & Nut Assembly |
| Optional Material | 35CrMo Alloy Steel |
| Manufacturing Process | Precision Hot Forging |
| Model Number | M25.4x89mm |
| Brand Name | STST |
| Certification | CE、CNAS、COC、SGS、ISO |
| Place of Origin | Fujian, China |
MOQ: 2
Price:
| Forging Density Optimization | High-density forged structure minimizes internal defects and improves durability |
| Bearing Surface Flatness | Precision-machined contact face improves load distribution during tightening |
| Delivery Time | 3-7 days |
| Extended Fatigue Cycle Performance | Designed to withstand prolonged cyclic loading in demanding undercarriage environments |
| Packaging Details | Export pallet packing |
| Impact Energy Absorption | Material toughness helps absorb sudden mechanical shock without structural damage |
| Supply Ability | 1500 MT/month |
| Surface Compression Strength | Hardened outer layer resists indentation and localized wear under high contact pressure |
| Payment Terms | T/T,D/P,D/A,L/C |
| Anti-Loosening Structural Stability | Engineered to maintain joint integrity in high-vibration crawler applications |
| Clamp Force Recovery Capability | Maintains fastening effectiveness after repeated dynamic loading and vibration |
| Thread Profile Uniformity | Consistent thread geometry enhances engagement accuracy and service life |
| Certification | CE、SGS、CNAS、COC、ISO |
| Model Number | M60×19 |
| Brand Name | STST |
| Place of Origin | Fujian China |
MOQ: 2
Price:
| Outer Diameter | 160mm |
| Compatible Model | Hitachi EX100-1, EX100-2, EX100-3, EX100-5; Fit EX120-1/2/3/5, ZX110, ZX120 |
| Packaging Details | Export pallet packaging |
| Surface Hardness | HRC 52-58 |
| Supply Ability | 1500 MT/month |
| Payment Terms | T/T,D/A |
| Sealing System | Double Floating Oil Seal + Double Metal Bushing |
| Delivery Time | 3-5 days |
| Product Name | Track Roller / Bottom Roller / Lower Roller |
| Roller Body Material | 50Mn Forged Alloy Steel |
| Certification | CE、CNAS、COC、SGS、ISO |
| Model Number | EX100 |
| Brand Name | STST |
| Place of Origin | Fujian China |
MOQ: 2
Price:
| OEM Part Number | CR5108, 1519747 (Universal Replacement) |
| Compatible Model | CAT E70B Mini Excavator, compatible with E307, E70 Series |
| Packaging Details | Export pallet packaging |
| Raceway Surface Hardness | HRC52–58 |
| Supply Ability | 1500 MT/month |
| Payment Terms | D/P,T/T |
| Hardened Layer Depth | 8–12mm |
| Delivery Time | 3-5 days |
| Product Type | Double Flange Track Roller / Lower Roller / Bottom Roller |
| Wheel Body Material | 50Mn / 40MnB Alloy Forged Steel |
| Certification | CE、CNAS、COC、SGS、ISO |
| Model Number | E70B |
| Brand Name | STST |
| Place of Origin | Fujian China |
MOQ: 2
Price:
| Nominal Diameter | 14 mm |
| Thread Model | M14 (Metric coarse thread standard) |
| Packaging Details | Export pallet packaging |
| Effective Length | 40 mm (Excluding head length) |
| Supply Ability | 1500 MT/month |
| Payment Terms | D/P,T/T,D/A |
| Thread Length Standard | Full thread / Half thread customizable |
| Delivery Time | 3-5 days |
| Product Name | M14x40mm Bolts |
| Pitch (Coarse Thread Standard) | 2 mm |
| Certification | CE、CNAS、COC、SGS、ISO |
| Model Number | M14x40mm |
| Brand Name | STST |
| Place of Origin | Fujian, China |
MOQ: 2
Price:
| Raw Material | Integral forged 50Mn high manganese steel |
| Product Name | Sprocket Segment / Drive Tooth Segment |
| Supply Ability | 1500 MT/month |
| Payment Terms | T/T,D/A |
| Applicable Working Conditions | Earthmoving, construction site, quarry, light mining |
| Delivery Time | 3-5 days |
| Packaging Details | Export pallet packaging |
| Core Advantage | Single piece replaceable, no need to change full sprocket |
| Compatible Machine | D5G Bulldozer, also fits D5C / D5D |
| Surface Hardness | HRC 53–58 |
| Certification | CE、CNAS、COC、SGS、ISO |
| Model Number | CAT D5G |
| Brand Name | STST |
| Place of Origin | Fujian, China |
MOQ: 2
Price:
| Load Capacity | Heavy-duty Load Bearing |
| Heat Treatment | Deep Induction Hardened Surface |
| Delivery Time | 3-7 days |
| Packaging Details | Export pallet packing |
| High-density Forged Core Structure | Enhances internal strength and impact resistance |
| Supply Ability | 1500 MT/month |
| Precision-balanced Roller Body | Reduces vibration and promotes smoother rotation |
| Payment Terms | L/C,T/T |
| Deep Case Hardening Technology | Provides a thicker hardened wear layer for longer service life |
| Material | High-strength Forged Alloy Steel |
| Optimized Track Return Guidance | Improves upper track chain stability during machine travel |
| Certification | CE、SGS、CNAS、COC、ISO |
| Model Number | R80 |
| Brand Name | STST |
| Place of Origin | Fujian China |
MOQ: 2
Price:
| Packaging Details | Export pallet packing |
| Material | 50Mn / 40Cr alloy steel |
| Part Type | Bulldozer Sprocket Segment |
| Delivery Time | 3-7 days |
| Supply Ability | 1500 MT/month |
| Working Condition | Mining, Quarry and Heavy Construction Applications |
| OEM Part Type | Replacement Segment Group for Komatsu Bulldozer |
| Quality Control | 100% Inspection Before Shipment |
| Place of Origin | Fujian China |
| Certification | CE、SGS、CNAS、COC、ISO |
| Brand Name | STST |
| Model Number | D50 |
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