Description
Product Name:This lower step plate is a key wear‑resistant component among professional Symons Cone Crusher spare parts, specially engineered for Symons 3FT, 4‑1/4FT, 5.5FT and 7FT spring cone crusher models. Different from the upper step plate, this lower thrust plate features four corner positioning lugs for anti‑rotation and fixed installation inside the socket base. Working in coordination with upper step plate and socket liner, this part bears long‑term axial thrust and rotational friction during crushing operations.
As essential Cone Crusher spare parts, our lower step plate adopts an optimized oil‑groove structure to improve lubrication efficiency, reduce friction loss between matched components, and effectively extend the service life of the entire socket assembly under heavy‑load mining conditions. Our factory supplies a complete series of Symons Cone Crusher spare parts and general Cone Crusher spare parts, covering lower step plate, upper step plate, socket liner, inner bushing, outer bushing, eccentric bushing and other bronze wear‑resistant components for full‑set replacement.
Compatibility
Precision‑machined to perfectly fit mainstream Symons spring cone crusher specifications: Symons 3FT, 4‑1/4FT, 5.5FT, 7FT.
All aftermarket lower step plate and matched Symons Cone Crusher spare parts are manufactured in strict accordance with OEM dimensional standards, supporting direct plug‑and‑play installation without modification.
Quality Control
Every lower step plate undergoes strict multi‑stage inspections including chemical composition analysis, hardness testing, metallurgical inspection and full‑size dimensional verification.
Rigorous quality control ensures strong impact resistance and stable performance of our Cone Crusher spare parts and Symons Cone Crusher spare parts in severe quarry and mining environments.
Applications
·Mining exploitation
·Quarry stone crushing
·Aggregate production
·Cement raw material processing
·Metallurgical crushing industry
Basic Terms
MOQ: 1 piece
Lead Time: 7–15 working days (subject to stock availability)
Payment Terms: T/T, L/C and other internationally accepted payment methods
Warranty: 12 months under normal working conditions
Key Features
✅ Anti‑Rotation Four‑Corner Design
Unique four‑corner positioning structure locks the lower step plate in place, avoiding displacement during operation and improving stability of Symons Cone Crusher spare parts.
✅ High‑Grade ZCuPb15Sn8 Bronze Material
Excellent wear‑resistance and pressure‑bearing performance for critical Cone Crusher spare parts under continuous heavy‑load operation.
✅ OEM‑Level Precision Machining
Strictly produced according to original equipment standards to ensure precise matching with Symons cone crusher assemblies.
✅ Scientific Lubrication Groove Design
Special oil‑groove layout optimizes lubrication circulation and minimizes metal‑to‑metal abrasion between Symons Cone Crusher spare parts.
✅ Comprehensive Quality Testing
Each finished lower step plate is fully inspected before delivery to guarantee reliable operation of your crushing equipment.
We are a professional Chinese manufacturer and supplier of high‑quality Symons Cone Crusher spare parts and general Cone Crusher spare parts. We provide one‑stop supply of lower step plate, upper step plate, socket liner, eccentric bushing and other bronze wearing parts. Custom processing is available based on your part numbers or technical drawings.
Whether you need a single lower step plate or a complete set of Symons Cone Crusher spare parts, we can provide OEM‑equivalent, cost‑effective and fast‑delivery solutions to support your continuous crushing production.

