Overview — Sprockets for Earthmoving Equipment
Australia’s construction and mining sectors are booming — from highway expansions in Queensland to tunnel projects in Sydney and iron-ore strip mining in the Pilbara. Earthmoving equipment — excavators, bulldozers, track loaders, and motor graders — relies on robust chain-and-sprocket drives for track propulsion, attachment actuation, and auxiliary systems.
Công ty TNHH Nhông xích Ever-Power Australia sản xuất earthmoving-grade sprockets from high-strength alloy steels, through-hardened and carburised, designed to handle the shock, abrasion, and continuous duty that define earthmoving operations. From compact excavators to 200-tonne mining shovels, we supply sprockets that keep your fleet moving.
Thông số kỹ thuật
| Tham số | Tiêu chuẩn | Phong tục |
|---|---|---|
| Bước xích | 1″ – 2-1/2″ (ANSI 80–200) | Up to 3″ |
| Răng | 9 – 45 | Up to 80 |
| Sợi | Simplex / Duplex / Triplex | Quad |
| Trung tâm | Type B / C / QD / Taper | Weld-on / Split |
| Khoan | 30 mm – 120 mm | Up to 200 mm |
| Vật liệu | 42CrMo4 / 40Cr | Manganese / AR plate |
| Độ cứng | HRC 45–55 | HRC 60 carburised |
| Bề mặt | Hot-dip galvanised / Dacromet | Ceramic / Zinc-nickel |
| PCD | 80 mm – 1200 mm | Up to 1800 mm |
| Hồ sơ | ANSI B29.1 / ISO 606 | Heavy-duty modified |
| Vòng tua tối đa | 500 | 800 |
| Nhiệt độ | –30 °C to +150 °C | –50 °C to +250 °C |
| Rãnh then | DIN 6885 | Double / Spline |
| Dung sai lỗ khoan | H7 | H6 |
| TIR | ≤ 0,08 mm | ≤ 0,04 mm |
| Working Load | Up to 60 kN per strand | 120 kN+ |
| Độ bền kéo | ≥ 800 MPa | ≥ 1100 MPa |
| Mệt mỏi | ≥ 10,000 hrs | ≥ 22,000 hrs |
| Impact | ≥ 35 J @ –20 °C | ≥ 50 J @ –40 °C |
| Bao bì | Heavy-duty crate | Custom pallet |
Ưu điểm về hiệu suất
💪 Track-Hardened Teeth
Carburised HRC 58–60 tooth tips resist the grinding action of rock, sand, and soil, extending undercarriage sprocket life 2–4× compared to standard parts.
⚡ Shock Absorption
42CrMo4 alloy core with ≥ 35 J Charpy toughness absorbs the dynamic impacts of tracking over uneven terrain, rock ledges, and rubble — preventing tooth fracture.
❌ OEM Price Trap
OEM track sprockets are marked up 3–5× over manufacturing cost. Our factory-direct sprockets match OEM specs at 30–50% less, with the same or better material quality.
How Sprockets Work in Earthmoving Equipment
Earthmoving machines use sprockets in several critical drive systems:
▸ Track drive sprocket (crawler machines): The final-drive sprocket engages the track chain, propelling excavators, dozers, and tracked loaders. It endures the highest torque and abrasion of any sprocket on the machine. Tooth wear directly affects track tension, machine stability, and fuel efficiency.
▸ Slew ring drive: Some excavators use a chain-driven slew mechanism. The sprocket must handle high torque and frequent direction changes under load.
▸ Attachment drive (trenchers, cold planers): Specialised attachments use chain-and-sprocket drives to power cutting drums, conveyor chains, or rotary mechanisms.
▸ Conveyor on mobile screening plants: Mobile earthmoving screening plants use sprocket-driven conveyors to transport screened material.
▸ Winch and hoist drives: Cable-handling winches on draglines and cranes use sprockets to drive the cable drum.
Khả năng tương thích
| Loại máy | Chain / Track Types | Thương hiệu* |
|---|---|---|
| Excavator (5–90t) | Sealed track chain, Greased | Caterpillar, Komatsu, Hitachi, Kobelco |
| Dozer (D3–D11 class) | Sealed & lubricated track | Caterpillar, Komatsu, Liebherr |
| Track Loader | Sealed track chain | Caterpillar, Bobcat, Kubota, ASV |
| Trencher | ANSI 80–120 duplex | Ditch Witch, Vermeer, Toro |
*Tên thương hiệu chỉ dùng để tham khảo. Không có liên kết nào.
📊 Machine Class — Track Sprocket Wear Life Benchmark
| Machine Class | Typical Terrain | OEM Life (hrs) | Ever-Power Life (hrs) |
|---|---|---|---|
| Mini Excavator (1–8t) | Urban / Clay | 2,500–3,500 | 3,500–5,000 |
| Medium Excavator (20–40t) | Rock / Quarry | 3,000–4,500 | 5,000–7,000 |
| Large Dozer (D8–D11) | Mine site / Overburden | 4,000–6,000 | 6,000–9,000 |
| Track Loader (CTL) | Mixed / Construction | 1,500–2,500 | 2,500–4,000 |
Hướng dẫn lựa chọn
- Identify machine make, model, and serial number for exact undercarriage cross-reference.
- Determine terrain type: clay, sand, rock, mixed — this determines required hardness and material.
- Count existing sprocket teeth and measure pitch; confirm track chain type (sealed, lubricated, dry).
- Choose material: 42CrMo4 carburised for rock; 40Cr hardened for general construction.
- Specify if segment or one-piece sprocket — segments allow partial replacement for large machines.
Contact our undercarriage team for machine-specific sprocket cross-references.
Lắp đặt
- Park machine on firm, level ground. Shut down engine and apply all safety locks.
- Release track tension via the grease-relief valve or hydraulic adjuster.
- Split track at the master pin and walk track off the sprocket.
- Unbolt sprocket segments (or remove one-piece sprocket from final-drive hub).
- Clean final-drive hub face and bolt holes; inspect for damage.
- Mount new sprocket; torque bolts in star pattern to OEM specification.
- Re-assemble track around sprocket; connect master pin.
- Re-tension track to OEM spec (typically 25–50 mm sag at mid-span).
- Walk machine forward and reverse 10 m; re-check tension (new sprockets may settle).
- Inspect after first 50 hours of operation; re-torque bolts and re-check tension.
Khắc phục sự cố
Track de-railing / throwing track
Gây ra: Worn sprocket teeth no longer engaging track links correctly. Sửa chữa: Replace sprocket; also inspect idlers, rollers, and track links for matching wear.
Excessive undercarriage noise
Gây ra: Sprocket/track pitch mismatch from uneven wear. Sửa chữa: Replace sprocket and chain as matched set; verify final-drive alignment.
Sprocket segment bolt failures
Gây ra: Incorrect torque or grade of bolts. Sửa chữa: Use OEM-grade (10.9 or 12.9) bolts; torque to specification with calibrated wrench; apply thread locker.
Accelerated wear on one side
Gây ra: Machine working on side slopes, or uneven final-drive alignment. Sửa chữa: Rotate sprocket 180° (if symmetrical); inspect and shim final drive if misaligned.
Track too tight after sprocket replacement
Gây ra: New sprocket PCD larger than worn sprocket. Sửa chữa: This is normal; re-adjust track tension to account for new geometry. Re-check after 50 hours.
Nghiên cứu trường hợp
📍 Pilbara, WA — Iron Ore Mine (Cat D11 Dozer)
D11T dozer pushing overburden on abrasive iron ore. OEM sprocket segments lasting 4,500 hours.
Kết quả: 42CrMo4 carburised segments. Achieved 7,200 hours — 60% life improvement. AUD 45,000 saved per machine per cycle.
“Sixty percent more life at half the OEM price. The numbers speak for themselves.” — Fleet Manager
📍 WestConnex Tunnel, Sydney, NSW
Komatsu PC360 excavators working in rock. Track sprockets wearing every 3,000 hours in confined tunnel conditions.
Kết quả: Manganese-steel one-piece sprockets. 5,500 hours achieved in identical conditions.
“Manganese was the right choice for tunnel rock. Nearly double the life of standard parts.” — Tunnel Plant Supervisor
📍 Gold Coast, QLD — Land Development
Fleet of 8 Bobcat T870 CTLs on sandy soil. OEM sprockets lasting 1,800 hours.
Kết quả: Hardened alloy sprockets across all 8 machines. Average 3,200 hours — 78% improvement. Fleet undercarriage budget reduced 35%.
“Across 8 machines, the savings add up fast.” — Equipment Manager
📍 Hunter Valley, NSW — Coal Mine (Hitachi EX5600)
200-tonne mining shovel. Track sprocket segment bolts shearing during heavy digging cycles.
Kết quả: Upgraded to Grade 12.9 bolts with Nordlock washers on Ever-Power sprocket segments. Zero bolt failures in 6,000 hours.
“Bolt failures were causing unplanned shutdowns every 800 hours. Problem eliminated.” — Maintenance Planner
📍 Ditch Witch Trencher Fleet, VIC
Utility contractor with 5 Ditch Witch RT80 trenchers. Digging chain drive sprockets wearing in 600 hours in rocky clay.
Kết quả: Carburised duplex sprockets. 1,400 hours achieved — more than double OEM life.
“We halved our sprocket change frequency across the whole fleet.” — Fleet Operations
Câu hỏi thường gặp
Do you supply track sprockets for all major excavator brands?
Yes. We cross-reference and manufacture for Cat, Komatsu, Hitachi, Kobelco, Volvo, Hyundai, Liebherr, and more.
Can you supply segment sprockets for large mining shovels?
Yes. We produce segments for machines up to 400 tonnes, including Cat, Hitachi, and P&H shovels.
What is the advantage of one-piece vs segment sprockets?
One-piece is stronger and more precise; segments allow partial replacement of worn sections, reducing cost on large machines.
Do you offer fleet pricing?
Yes. Volume discounts available for fleet operators. Contact us for fleet pricing.
Can you match OEM Cat or Komatsu sprockets?
Yes. Provide the OEM part number and we manufacture to exact specification at 30–50% below OEM price.
What testing do undercarriage sprockets receive?
Hardness, Charpy impact, MPI/UT defect inspection, and dimensional CMM verification. Full reports included.
Do you supply to undercarriage rebuilders?
Yes. We work with undercarriage rebuild specialists across Australia, supplying both new sprockets and re-buildable cores.
How fast can you deliver for a machine breakdown?
Emergency manufacturing and express freight available. Contact us for priority turnaround.
Do you supply idlers and rollers as well?
Our core product is sprockets. For complete undercarriage packages, we can recommend partner suppliers.
Is your quality comparable to OEM parts?
Our materials and heat treatment meet or exceed OEM specifications. We provide full material and dimensional certification with every order.
Related — Heavy-Duty Chains
Kết hợp với sản phẩm của chúng tôi heavy-duty roller chains for complete earthmoving drive solutions.
Chứng chỉ
✅ ISO 9001:2015 | ✅ ANSI B29.1 / ISO 606 | ✅ EN 10204 3.1 | ✅ AS 4100 (Steel Structures) | ✅ CE
Tại sao nên chọn Ever-Power Australia Sprockets Co., Ltd.?
Với 20+ years manufacturing heavy-duty sprockets, we serve earthmoving contractors, mining fleets, undercarriage rebuilders, and equipment dealers across Australia and 50+ countries. Factory-direct pricing, OEM-matching quality, and emergency supply capability — we keep Australia’s earthmoving fleet on the ground and moving dirt.
Move More Dirt — Contact Us
OEM quality. Factory-direct price. Australian stock.
Ever-Power Australia Sprockets Co., Ltd. supplies earthmoving sprockets that outlast OEM parts at a fraction of the cost. Contact our undercarriage team for machine-specific cross-references and fast quotes.
