High Chromium Cast Iron Screw Liner for Tower Stirred Mill

Product Description:

Vertical Stirred Mill Screw liners for vertical stirred mills of various specifications. The tower mill is a type of vertical mill. It consists of a vertical cylinder, spiral flights, drive unit and other components.
Screw liners (wear liner and end liner), that protect the permanent screw from the wear.

Core Advantages:

High chrome cast iron material, superior wear resistance for fine grinding

Professional heat treatment, stable hardness, long service life

Factory direct supply, competitive price

Precision casting, accurate installation positioning

Customizable per customer drawings and tower mill models

Quality Control

Strict quality‑control system is implemented throughout the whole production of Ball Mill Liner with multi‑stage inspection procedures.

  IQC (Incoming Quality Control)
Verify raw‑material certificates. Chemical composition sampling test via spectrometer for high‑manganese steel and high‑chromium cast iron. Unqualified raw materials are rejected before casting.

  IPQC (In‑Process Quality Control)
Check mold and drawing dimensions. Monitor pouring process and quenching‑tempering heat‑treatment. Mark batch number on each casting after riser cutting. Carry out on‑site patrol inspection during production.

  FQC (Final Quality Control)
Visual inspection plus MT Magnetic Particle Testing to detect cracks, porosity, sand holes and inclusions. Penetrating cracks are strictly prohibited.
Hardness test according to customer working‑condition requirements.
Full dimensional inspection against drawing to ensure fitting tolerance.
Single‑piece actual‑weight verification.

  OQC (Outgoing Quality Control)
Re‑check model and quantity. Take product photos for archive. Inspect packing and anti‑rust treatment. Issue Material Test Report, Hardness Report and Final Inspection Certificate, delivered by email or together with shipment.

  Non‑conforming Parts Handling:
Minor defects can be repaired by grinding followed by full re‑inspection. Severely defective castings shall be scrapped and reproduced, and customers will be duly informed.

We provide full‑set technical support and after‑sales services for Ball Mill Liner to guarantee stable performance and long service life. We offer professional consultation at the stage of product selection and installation, helping you select proper liner material and structure for your actual grinding conditions.

Our technical team supplies detailed maintenance guidance and troubleshooting support to reduce downtime and extend liner service life. On‑site inspection and performance evaluation are available to analyze wear status and give suggestions for timely replacement or adjustment.

Customized modification and upgrade schemes for liner design are also available to lift grinding efficiency and lower operating costs. We focus on product quality and customer satisfaction and offer continuous technical support during the whole service cycle of ball mill liners.

Cooperating with us, you can obtain professional industry solutions to improve reliability and productivity of your grinding production.

Ball Mill Liners are well‑packed to arrive at customer site in perfect condition. Every liner is wrapped with protective materials to avoid transit damage. According to product size and order quantity, liners are placed in heavy‑duty wooden crates or pallets for shock‑proof and vibration‑proof protection.

Multiple shipping options are available including sea freight, air freight and land transportation to satisfy different delivery demands. Complete shipping documents and tracking service ensure timely and safe delivery. Our packing & shipping procedure keeps product integrity from our factory to your project site.