Place of Origin:
China
Brand Name:
Belparts
Certification:
CE
Model Number:
PC800LC-8 PC800-8
This heavy‑duty bucket hydraulic cylinder is engineered as a direct bolt‑on aftermarket replacement exclusively for Komatsu PC800‑8 standard‑frame and long‑track PC800LC‑8 large‑size mining excavator. Serving as the end‑actuator of the front working attachment, it generates powerful curl‑and‑dump force for ore scooping, blasted rock handling, open‑pit stockpiling and large‑scale earth‑moving operations. It is a high‑priority inventory part for mine maintenance workshops, heavy‑equipment rental contractors and international spare‑part wholesalers focusing on Komatsu 8‑series mining‑spec excavators.
All manufacturing processes strictly abide by Komatsu’s original OEM mining‑level design criteria. Mount lug dimensions, pin‑hole diameters, bushing inner sizes and hydraulic port positioning strictly comply with part number 707‑01‑0K300. No grinding, cutting or on‑site welding modification is needed during replacement installation, effectively cutting down repair labour costs and minimising costly production stand‑downs caused by hydraulic cylinder breakdown at mining job‑sites.
| Item | Detailed Specification |
|---|---|
| Full Product Name | Complete Bucket Hydraulic Cylinder Assembly |
| Applicable Equipment | Komatsu PC800‑8 Standard‑Track Excavator, PC800LC‑8 Long‑Track Mining Excavator |
| OEM Reference PN | 707‑01‑0K300 |
| Product Grade | Heavy‑mining reinforced aftermarket hydraulic assembly |
| Quality Warranty | 12‑month warranty covering all factory‑induced manufacturing defects |
| Minimum Order Quantity | 1 unit, in‑stock goods ready for prompt shipment |
| QC Execution Standard | ISO9001 full‑process traceable production; 100% high‑pressure airtight leakage test and long‑term reciprocating impact fatigue test before delivery |
| Technical Index | Standard Value |
|---|---|
| Cylinder Tube Inner Bore | 166 mm |
| Hard‑Chrome‑Plated Piston Rod Diameter | 108 mm |
| Effective Working Stroke | 1650 mm |
| Rated System Operating Pressure | 31.4 MPa |
| Factory Hydraulic Proof‑Test Pressure | 47.1 MPa (1.5 times rated working pressure for comprehensive internal‑external leak inspection) |
| Barrel Raw Material | Ultra‑high‑tensile seamless alloy steel processed with deep precision inner honing. The polished inner wall resists long‑term hydraulic fluid abrasion under continuous high‑load mining cycles |
| Piston Rod Surface Treatment | 40CrMo quenched‑and‑tempered base alloy, 30‑35μm thick compact hard‑chrome coating, surface hardness HRC68‑72. It withstands scratches and bending deformation when striking jagged blasted rock in open‑pit environments |
| Matching Dedicated Seal Kit PN | 707‑01‑0K300‑KIT |
| Safe Operating Temperature Range | -25℃ ~ +85℃ |
| Structural Feature | Widened extra‑thick bucket connection lugs fitted with oversized self‑lubricating copper‑alloy bushings; dual‑stage built‑in buffer mechanism to absorb sharp impulse loads during repeated bucket grabbing and releasing cycles under mining‑grade heavy loads |
Universal Dual‑Frame Fit for PC800‑8 and PC800LC‑8 Mining‑Spec Excavators
This bucket cylinder assembly suits both standard chassis and extended long‑track PC800‑8 models without dimensional deviation. All mounting geometries replicate original Komatsu OEM mining‑grade components perfectly, mating seamlessly with bucket linkages and original hydraulic piping. Assembly misalignment and subsequent early seal deterioration plus oil seepage from forced fitting are completely avoided.
Open‑Pit‑Oriented Reinforced Anti‑Impact Structure Design
Different from ordinary construction‑only hydraulic cylinders, this version thickens cylinder tube walls and integrated cast lugs to adapt to harsh mining‑site conditions including cyclic heavy loads and frequent sharp‑rock collisions. The reinforced structure delivers far‑longer service life compared with generic thin‑wall aftermarket alternatives which cannot endure rigorous quarry‑style operations.
Two‑Round Independent Factory Inspections to Eliminate Hidden Quality Risks
Each finished bucket cylinder undergoes two strict offline testing procedures before leaving the factory. A full‑stroke reciprocating fatigue test simulates months‑long non‑stop ore‑digging to verify overall structural stability. A prolonged high‑pressure soaking tightness‑test checks every internal and external position for potential oil leaks. Defective products are screened out prior to warehousing so mine operators will not face unplanned production downtime.
High‑Cost‑Effective Replacement for Mining‑Fleet Owners
Original OEM spare parts for PC800‑8 mining excavators carry high pricing and have lengthy lead‑times. This aftermarket bucket cylinder matches the structural strength, stable running performance and service lifespan of genuine Komatsu parts at a much‑more‑competitive cost. It cuts down repeated long‑term maintenance expenditure for mine service stations and large rental enterprises operating fleets of PC800‑8 heavy‑duty diggers.
Custom‑Adapted Global Logistics Solutions for Remote Mining Areas
All in‑stock items can be dispatched within 3 working days after payment confirmation. Air‑express delivery handles urgent breakdown orders for isolated mountain‑mine sites; consolidated bulk sea freight and full FCL container shipments provide budget‑saving wholesale transport schemes for machinery distributors covering mining markets across Africa, Southeast Asia, the Middle East and Latin America.
Our factory has more than 10‑year specialized R&D and mass‑production experience in hydraulic cylinders for Komatsu 8‑series large mining excavators, with PC800‑8 and PC800LC‑8 as core mature mining models. We build a complete production workflow covering heavy‑duty precision forging, deep inner honing, integral heat‑treatment and automated thick‑chrome plating. Professional heavy‑load simulation test benches replicate real open‑pit working conditions to continuously optimise anti‑shock performance. Our mining‑grade hydraulic‑cylinder range is exported to dozens of countries year‑round, winning long‑term‑stable cooperation and positive feedback from global heavy‑machinery spare‑parts dealers via precise mining‑model matching and consistent stable‑quality control.
Q1: Can this bucket cylinder be fitted on Komatsu PC800‑7 or PC850‑8 excavators?
A: Cross‑model installation is not supported. Different Komatsu heavy‑mining excavator generations adopt exclusive OEM part‑numbers and unique lug‑mounting dimensions which are non‑interchangeable. Confirm the full machine‑model before placing orders.
Q2: Does the standard delivery package include the matching seal repair kit?
A: Standard packaging only contains the complete bucket cylinder assembly. The dedicated 707‑01‑0K300‑KIT seal kit is sold separately. We offer a discounted bundled quotation if clients purchase the cylinder and seal kit together.
Q3: What anti‑rust and anti‑collision protection is adopted for long‑distance ocean‑going transportation?
A: Anti‑rust hydraulic oil is injected into front‑and‑rear cylinder chambers to prevent internal corrosion; thick anti‑rust grease is evenly coated on the exposed piston‑rod surface. The whole cylinder assembly is wrapped in multi‑layer heavy‑duty waterproof PE film then fixed inside reinforced thick plywood export crates to prevent scratches, impact deformation and moisture erosion during long‑sea transit.
Q4: Are tiered bulk discounts available when ordering a full boom + arm + bucket cylinder set for PC800‑8 series?
A: Yes. Orders for the complete front working‑device cylinder set enjoy progressive volume‑based discounts. Consolidated full‑container sea‑shipping can also be arranged to reduce total international logistics costs for large‑batch purchases.
Q5: What after‑sales support is available if oil leakage occurs within the 12‑month warranty period?
A: Provide clear photos of the leakage spot as well as the excavator serial number for validation. We will supply free replacement seal components and detailed step‑by‑step remote‑maintenance guidance promptly, fixing oil‑leak faults without delaying mine‑production schedules.
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