HPGR PRESS FRAME / FRAME WEAR LINER

HPGR Frame Protection Liners

Replaceable protection inside the frame, near roll ends and below rolls · Identify by location and plate number

Frame protection liners shield the machine structure from wear caused by flying material, falling feed, scraping and buildup. ANRANST checks frame zone, fixed or floating roll side, orientation, plate number, profile, hole pattern, material, used-part wear and drawing number, distinguishing structural supports from replaceable wear plates.

Equipment HPGR units with replaceable frame protection plates

Installation Position Inside the frame, near roll ends and below the rolls

Operating Conditions Wear from flying material, falling-feed impact, scraping and buildup

Identification requirements Zone, orientation, plate number, profile, hole pattern and drawing number

Category image for identifying frame protection plates. Confirm zone, orientation, plate number, outline, hole pattern and datums against assembly drawings, liner layouts or an approved sample.

System function

Use replaceable plates to protect the main frame structure

Frame liners provide a maintainable sacrificial layer that prevents material from wearing the frame, supports, crossmembers or nearby structures directly. Duty varies by location, so material selection must address each installation zone.

Rear support, flatness, hole positions and fastening condition affect vibration, warping and hole-area damage. Inspect the frame mounting surface for wear when replacing plates.

Zone identification Roll ends, below rolls, inner sidewalls, near crossmembers or at discharge transitions

Orientation identification Fixed/floating roll side, drive/non-drive end, left/right

Geometry identification Profile, thickness, hole pattern, bends, recessed holes and mounting datums

Connection identification Bolts, clamping plates, shims, welded parts and rear support

Position and Performance

Consider protective coverage, maintainability and frame datums together

Assess existing frame damage before covering the area with a replacement liner.

Roll-end material-splash zone

Exposed to material carried by the rolls, lateral escape and fast-moving particles. Check local grooves, edges and joints.

Falling-material zone below the rolls

May experience impact from cake or particles. Check support beneath the plate, effective thickness and impact toughness.

Inner frame sidewalls

Mainly subject to abrasion, scraping from buildup and cleaning damage. Check coverage and modular replacement arrangements.

Areas near moving parts

Near floating rolls, hydraulic systems or adjustment mechanisms, verify the full movement envelope and safe clearances to prevent interference.

Mounting surfaces and support

Plate shape, rear contact, hole positions and shims affect loading. Unsupported areas increase vibration, cracking and bolt loosening.

Inspection and replacement access

Record remaining thickness and frame substrate condition by position number, and verify that replacement restores the design datums.

Materials and Manufacturing Processes

Establish support, plate shape and connections before increasing surface wear resistance

Confirm grade, hardness, thickness and service-life targets using drawings, used parts and operating conditions together.

Material options: Hardox 500, chromium carbide overlay plate and high-chromium cast iron KmTBCr26 are material candidates for assessment. Confirm hardness for the product thickness and material standard; suitability for frame protection depends on impact, support and drawing requirements.
Material options are for preliminary engineering selection; suitability and service life depend on the application.

Quenched and Tempered Wear Plate For protection plates requiring bending, drilling, welding or overall shape control. Control cutting heat effects, hole patterns, flatness and installation support.

Bimetallic Composites Evaluate for well-supported surfaces exposed to severe abrasion. Address hole areas, edges, composite interfaces and mounting surfaces.

Hardfacing and local repairs For plates or frame protection surfaces approved for repair, control substrate weldability, heat input, deformation and mounting datums.

Structural steel backing plates and connections Backing plates, clamping plates and fasteners locate parts and transfer loads. Follow controlled drawings for materials, strength, locking and surface protection.

Selection sequence: flying material, falling feed and buildup → wear and impact by zone → plate and support failures → materials and structure → drawings and inspection → mounting datums → service-life records.

Failure Diagnosis

Distinguish plate wear, fastening failure and main frame damage

Assess substrate wear or cracks before installing a new liner over the affected area.

Observed condition	Priority checks	Improvement Options
Local wear-through or grooving	Material path, direction of flying material, coverage, material, thickness and adjacent joints	Extend protection or optimise materials for high-wear zones
Liner cracking or warping	Impact, support beneath the plate, plate shape, heat effects, hole edges and material toughness	Restore support and control manufacturing and installation distortion
Bolt loosening or tearing around holes	Preload, contact surfaces, hole pattern, locking, vibration, buildup and maintenance records	Restore mounting surfaces and standardise fastening procedures
Contact between liners and moving parts	Floating roll travel, hydraulic movement, plate orientation, deformation and safe clearances	Recheck profiles and positions over the full travel range
Main frame wear or cracks	Liner coverage, remaining thickness, mounting surfaces, previous repairs and structural stresses	Assess the main structure first and establish a controlled repair procedure

Drawing References and Inquiry Details

Identify parts by frame zone, plate number, outline and mounting datums

Record confirmed OEM drawing numbers, third-party drawing numbers and customer part numbers together. Manufacture to the controlled drawing revision.

Equipment and frame

OEM, full model, serial number, frame version, roll surface design and modifications.

Location and plate number

Fixed/floating roll side, drive/non-drive end, above/below rolls, left/right orientation, plate number and quantity.

Outline and hole pattern

Length, width, thickness, bends, profile, hole diameters and spacing, recesses, joints and mounting datums.

Mounting surfaces and clearances

Rear support, shims, clamping plates, fasteners, minimum clearance to moving parts and frame substrate condition.

Drawing numbers and materials

OEM drawing number, third-party drawing number, customer part number, revision, material, hardness and manufacturing process.

Operating conditions and service life

Feed material, throughput, flying- and falling-material locations, remaining thickness, failure photographs and replacement records.

Related Equipment and Parts

Connect frame liners with HPGR equipment, adjacent wear parts and OEM installations

This page covers general protection zones, materials and failures. Use OEM equipment pages to confirm series, model and frame version.

General High Pressure Grinding Rolls Information Review the relationship between the frame, fixed roll, floating roll and discharge path. HPGR Discharge Chute Liners Check the discharge wear system adjacent to frame protection below the rolls. HPGR Side Liners and Cheek Plates Distinguish material-bed containment beside the roll gap from frame protection plates. Metso HRC / HRCe Check HRC / HRCe models, frames and protection zones. FLS HPGR Identify frame protection drawing numbers through the FLS equipment series. thyssenkrupp Polysius HPGR Check frame plate positions through the brand's equipment series.

ANRANST is an independent aftermarket industrial spare parts service platform. OEM names and trademarks belong to their respective owners. Confirm the full model, serial number, drawing number, drawings, dimensions and actual operating conditions before manufacture.