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Cone Crusher Main Shaft Sleeve
Brand :ZHUOYUE
Product origin :Shenyang, Liaoning, China
Delivery time :One week
Supply capacity :2,000 cases per year
1. Mainshaft Protection:Precisely fitted to protect the mainshaft from wear during continuous crushing.
2. Forged Alloy Steel:Made from alloy steel with controlled forging and heat treatment for reliable wear and impact resistance.
3. Precision Machining:Critical dimensions are precisely machined to ensure accurate fit with the confirmed crusher model or part number.
4. Stable Operation:Proper fit helps reduce mating-surface wear and supports stable crusher operation with easier maintenance.
5013-6801
7320-3201
7320-4202
7320-4331
K1414.05.06
Mainshaft Wear and Deformation Under Continuous Crushing:
Continuous crushing exposes the mainshaft to heavy loads, impact, vibration, dust, and friction. Without proper protection, direct wear and localized deformation can affect component fit, increase maintenance frequency, and lead to unexpected downtime.
Our Solution
Precision-Machined Sleeve for Reliable Shaft Protection
Our mainshaft sleeves are manufactured to the confirmed crusher model, drawing, or part number, using controlled heat treatment and CNC machining. With HRC 45–55 hardness, ±0.04 mm dimensional tolerance, and Ra ≤1.2 μm surface roughness where specified, the sleeve provides stable mating with the shaft, absorbs wear, and protects the mainshaft from direct abrasion and deformation. Its replaceable design also simplifies scheduled maintenance.
Technical parameters：
| Parameter | Recommended Specification | Data Basis / Note |
|---|---|---|
| Core Hardness | HRC 45–55 | Pre-machining substrate hardness; reference range |
| Surface Hardness | HRC 50–55 | Finished sleeve after specified surface hardening |
| Tensile Strength | ≥980 MPa | Test value based on specified material and heat-treatment condition |
| Yield Strength | ≥835 MPa | Test value based on specified material and heat-treatment condition |
| Impact Toughness (Ak) | ≥40 J/cm² | Test value under specified material and heat-treatment condition |
| Elongation | ≥12% | Test value under specified material and heat-treatment condition |
| Wear Resistance | 3–5× ordinary cast shaft sleeves* | Comparative test result under specified test conditions |
| Friction Coefficient | >20% lower than ordinary products* | Comparative test result under specified test conditions |
| Operating Noise | ≤81 dB(A)* | Measured at rated load under specified test conditions |
Product Advantages:
1. Forged Alloy Steel & Controlled Heat Treatment
Manufactured from high-strength alloy steel with an integral forged blank and controlled quenching and tempering, the sleeve provides a dense and stable material structure for demanding crushing applications. Finished surface hardness can reach HRC 45-55, with impact toughness of ≥40 J/cm² under the specified material and heat-treatment condition. The forged construction helps reduce internal defects commonly associated with cast components and improves resistance to impact, wear, and localized deformation.
2. Precision CNC Machining & Reliable Fit
Critical dimensions and mating surfaces are precision-machined by CNC according to the confirmed crusher model, drawing, or part number. Dimensional tolerance can be controlled to ±0.04 mm, with surface roughness of Ra ≤1.2 μm where specified. This supports a stable fit between the sleeve and mainshaft, helping reduce uneven contact and direct shaft wear during continuous crushing operation.
3. Replaceable Wear Component for Easier Maintenance
Designed as a replaceable protective component, the mainshaft sleeve takes the wear generated at the shaft mating area and helps protect the higher-value mainshaft from direct abrasion and deformation. The positioning design supports consistent installation and replacement during scheduled maintenance. This allows maintenance teams to replace the worn sleeve rather than unnecessarily replacing the mainshaft, helping reduce maintenance complexity and equipment downtime.
Product Application:
Reference Operating Conditions
· Open-pit mining: Continuous ore crushing under heavy-load operating conditions
· Quarry aggregate plant: Long-cycle crushing of granite, basalt, and other abrasive rock
Large aggregate production line: Continuous operation with high material throughput and frequent crushing cycles
· Road construction projects: Aggregate production requiring stable crusher operation over extended working periods
· Water conservancy projects: Crushing and processing of hard stone and construction aggregates
Construction material processing: Repeated crushing operations where mainshaft wear protection is required
The above are reference operating conditions and application scenarios, not individual customer case studies. Actual component selection should be based on the crusher model, operating load, feed material, installation dimensions, and manufacturer's specifications.
Corporate Strength:
Our core team brings over 10 years of experience in mining machinery and crusher replacement parts, covering process confirmation, manufacturing, and quality inspection for crusher structural components, wear parts, and custom machined parts.
We focus on cone crusher dust covers and seal rings, with fitment confirmed against the crusher model, OEM number, drawing, or worn sample before production.
Our 24-member engineering and technical team supports product development, technical drawing review, customized component design, and production requirements verification.
The production facility operates 10 machining lines, 2 welding lines, and 2 assembly lines, supporting both standard and non-standard mining machinery components with an annual production capacity of approximately 2,000 tons.
Our products are supplied to customers across Europe and the Americas, with manufacturing and inspection carried out according to confirmed technical specifications and customer requirements.
After-Sales Service:
Our support continues after shipment, with assistance available for installation, technical issues, warranty claims, and replacement parts.
Delivery & Warranty
· Typical lead time: about 1 month following order confirmation.
· Warranty period: 12 months from the delivery date.
Technical & Installation Support
· Technical inquiries receive an initial response within 24 hours.
· Remote troubleshooting and video instructions can be provided within 48 hours when necessary.
· On-site assistance is available based on project requirements, with travel and accommodation handled separately.
Warranty & Parts
· Warranty applies to manufacturing defects and covered components including the main frame, hydraulic system, and electrical system.
· Wear components such as liners and mantles are excluded from warranty coverage.
· Common replacement parts can be supplied from stock when available; customized or non-standard parts are produced according to the required schedule.
Factory Verification & Quality Inspection
Before placing an order, buyers can verify our production capability, material condition, and finished product quality through remote factory access and inspection arrangements. Factory video tours and live production checks are available, while pre-shipment inspections can be carried out by SGS, Bureau Veritas, or a buyer-appointed inspector. For projects requiring additional material verification, 20–50 kg samples can be submitted for testing, with the corresponding test results and testing videos available for review.
Comprehensive Quality Control System:
Quality checks are integrated throughout the manufacturing process, with inspection requirements established before production and verified at key stages. Materials, machining, heat treatment, assembly, and final products are assessed against applicable ISO/ASTM standards, material specifications, approved drawings, and customer requirements.
Quality Control Covers:
· Material grade and chemical composition
· Heat-treatment condition and hardness
· Mechanical properties
· Critical dimensions and tolerances
· Thread size, accuracy, and fit
· Assembly and functional compatibility
Before shipment, finished components undergo final inspection and sampling to verify critical specifications and performance requirements. Inspection records and relevant test documentation can be provided according to the product and order requirements.
This process helps identify dimensional, material, and assembly deviations before delivery, supporting consistent product quality and reliable performance in demanding mining applications.
FAQ:
Q: What is the minimum order quantity (MOQ)?Can you do large volume and long term purchase?
A:Minimum order 1 piece, supports bulk purchase as well as long-term procurement
Q: Do you usually use a particular type of packaging?
A: Normally we pack small parts into wooden boxes, large parts and complete machines are packed in frames made of channel steel with the whole frame wrapped in foam and waterproof film to prevent vibration and get rusty from rain water during transportation.
Q: Which kind of logistics and transport methods do you use?
A: We support EXW and FOB.
