Technical Advice
Equipment and part identification, drawing review, material selection and manufacturing feasibility assessment.
Clamps replaceable liners to the frame or impact apron and resists impact, vibration and loosening.
Liner bolts (Liner Bolts)— Impact Crusher Wear part, position 19.
| Installation Position | Fastening points for side liners, feed liners and each stage of impact liners; item 19 in reference diagram A. |
| Main Function | Clamps replaceable liners to the frame or impact apron and resists impact, vibration and loosening. |
| Replacement Frequency | High; replace if inspection reveals elongation, bending, head erosion, damaged threads, corrosion or failed locking hardware. |
| Item | Details |
|---|---|
| Material Options | Property class 10.9/12.9 alloy steel, quenched and tempered 35CrMo/42CrMo steel, or OEM-specified impact-resistant fasteners |
| Typical Properties and Acceptance Criteria | Liner bolts must balance adequate clamping force, impact toughness and fatigue resistance. Check the property class, thread, shank diameter, head profile, grip length, nuts and locking arrangement against the OEM specification. Inspect for decarburization, cracks, necking and thread-rolling defects. Do not substitute a harder grade without assessing preload and toughness. |
| Principal Failure Mechanism | Sliding or three-body abrasion, localized impact and cracking around fastener holes |
Use these links for preliminary selection. Confirm the complete model, serial or drawing number, drawing revision, dimensions and actual operating conditions to establish fit.
Independent aftermarket information. OEM names and trademarks belong to their respective owners and do not imply authorization, affiliation or endorsement. Confirm the series, complete model, serial or drawing number, drawings and operating conditions before manufacture.
Provide the machine model, operating conditions and target service life so our engineers can recommend materials and prepare a quotation.
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ANRANST provides customers worldwide with coordinated consulting, supplier sourcing, quality control and finished-part delivery for custom parts, wear parts and industrial spares from China, with scope to support other custom industrial parts.
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Match requirements with suitable manufacturers in China and coordinate the exchange of technical information.
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