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ATF Crusher Parts
Weitere Schlammpumpen-Teile | ATF

Schlammpumpen-Teile

Weitere Schlammpumpen-Teile | ATF

Weitere Schlammpumpen-Teile: Rahmenplattenauskleidungen, Expellerringe, Wellenhülsen und Stopfbuchskomponenten.

Laufräder Voluten Hochchrom

Technische Eckdaten

Frame Plate Grades
A05 (Cr27, 600+ BHN), R55 Rubber (55 Shore A)
Expeller Material
A05/A07 High-Chrome (Cr27/Cr27Mo)
Shaft Sleeve Materials
Ni-Resist D2C, 316SS, Ceramic-Coated Steel
Coating Hardness
1,200+ HV (Cr2O3 or WC-Co HVOF)
Pump Compatibility
Warman AH, Metso HM, KSB GIW, ITT Goulds, Flowserve
Size Range
1.5/1 through 20/18 (Warman frame equivalent)
Bearing Assembly
Cartridge housings, labyrinth seals, grease seals

Material Options for Wet-End Components

Material selection for frame plates and expellers follows similar criteria to other wet-end components. Shaft sleeves require additional consideration for seal compatibility and shaft protection requirements.

A05 High-Chrome (Cr27)

Härte:600-650 BHN
Anwendung:Frame plates, expellers for coarse abrasive slurries
Hinweise:Standard grade for mining pump wet-ends

A07 High-Chrome (Cr27Mo)

Härte:650-700 BHN
Anwendung:Corrosive-abrasive applications, acidic slurries
Hinweise:Improved corrosion resistance over A05

R55 Natural Rubber

Härte:55 Shore A
Anwendung:Frame plate liners for fine particle slurries
Hinweise:Bonded to steel backing, max 70C

Ni-Resist (D2C)

Härte:150-200 HB
Anwendung:Shaft sleeves, stuffing box components
Hinweise:Austenitic iron with corrosion resistance

Ceramic Coated Steel

Härte:1200+ HV coating
Anwendung:Shaft sleeves for maximum wear life
Hinweise:Chrome oxide or tungsten carbide coating

316 Stainless Steel

Härte:150-200 HB
Anwendung:Shaft sleeves in corrosive applications
Hinweise:Good corrosion resistance, moderate wear

Note: Shaft sleeve material must be compatible with packing or mechanical seal requirements. Consult ATF engineering for application-specific recommendations.

Other Parts

Essential Wet-End Components for Slurry Pump Reliability

Beyond impellers, volutes, and throatbush liners, slurry pump wet-ends contain several critical components that protect the pump frame and shaft from abrasive slurry contact and are essential to maintaining reliable, efficient operation between major overhauls. Frame plate liners—manufactured from A05 high-chrome white iron (Cr27, 600–650 BHN) or R55 natural rubber (55 Shore A) bonded to steel backing shells—protect the structural back plate and house the stuffing box liner. Expellers are auxiliary vane assemblies in A05 or A07 chrome alloy that provide dynamic shaft sealing by pumping slurry away from the seal area. Shaft sleeves in Ni-Resist D2C austenitic iron, 316 stainless steel, or ceramic-coated steel (chrome oxide or tungsten carbide HVOF at 1,200+ HV) protect the expensive pump shaft from wear and corrosion in the stuffing box zone. Each of these components is critical to the pump's overall reliability and total cost of ownership.

These wet-end components work together as an integrated system to maintain pump integrity, prevent slurry leakage, and extend service intervals between major overhauls. ATF manufactures aftermarket frame plates, expellers, shaft sleeves, suction covers, stuffing box components, lantern rings, gland plates, and bearing assembly parts for all major slurry pump brands including Warman/Weir, Metso, KSB GIW, ITT Goulds, Flowserve, and Schurco. Each part is engineered to OEM specifications using 3D scanning and CMM verification, with material options carefully matched to the specific operating conditions—slurry abrasiveness, pH, temperature, and solids concentration—encountered in mining and mineral processing applications. ATF supplies individual components or complete wet-end rebuild kits, providing a single-source solution that simplifies procurement, ensures material compatibility across all positions, and reduces total pump maintenance costs.

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Slurry pump spare parts including frame plates and expellers manufactured by ATF

Complete slurry pump wet-end components — frame plate liners, expellers, shaft sleeves and mechanical seals

Key Slurry Pump Wet-End Components

Frame Plate Liners

Back liners protecting the pump frame from erosion. High-chrome or rubber construction with integral stuffing box liner in many designs. Critical for maintaining pump structural integrity.

Expellers (Dynamic Seals)

Rotating vane assemblies mounted behind the impeller that pump slurry away from the shaft seal area. Reduces stuffing box pressure and extends packing or mechanical seal life.

Shaft Sleeves

Hardened sleeves protecting the pump shaft in the stuffing box area. Chrome iron, ceramic-coated, or hard-faced options available. Replaceable wear component preventing expensive shaft damage.

Suction Covers

Front cover plates with integral suction nozzle. High-chrome or rubber-lined options protect the suction inlet from erosion and house the throatbush liner.

Stuffing Box Components

Lantern rings, gland plates, packing rings, and water seal assemblies for conventional packed stuffing boxes. Proper sealing prevents slurry leakage and shaft damage.

Bearing Assembly Components

Bearing housings, cartridge assemblies, labyrinth seals, and grease seals. Protects bearings from contamination and maintains proper shaft support.

Need Frame Plates, Expellers, or Shaft Sleeves?

Send your pump model for complete wet-end component quotations.

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OEM Compatibility

ATF manufactures aftermarket wet-end components for all major slurry pump brands. Parts are engineered to OEM specifications with guaranteed dimensional fit.

Warman / Weir Minerals

  • AH Series (all sizes)
  • AHP High Pressure
  • L Series
  • M Series
  • HH Series
  • SP/SPR Vertical

Metso (Sala/Thomas/Orion)

  • HM Series
  • HR Series
  • HS Series
  • MD Mill Discharge
  • VASA Vertical

KSB GIW

  • LSA Series
  • LCC Series
  • LCV Vertical
  • MDX Mill Duty
  • TBC Tailings/Booster

ITT Goulds

  • XHD Extra Heavy Duty
  • SRL Rubber Lined
  • 5500 Series

Flowserve

  • Durco Slurry Series
  • IDP Slurry

Schurco Slurry

  • S Series
  • H Series
  • SC Series
FAQ

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What is the purpose of an expeller in slurry pumps?
Expellers (also called back vanes or dynamic seals) are auxiliary impeller vanes mounted on the back hub of the main impeller that create a centrifugal pumping action to drive slurry away from the stuffing box area. When the pump is running, the expeller reduces the pressure in the seal chamber from full discharge pressure (which can be 200–800 kPa depending on pump size and duty) to near-atmospheric, dramatically reducing the pressure differential across the packing or mechanical seal. This lower pressure minimises slurry penetration into the seal area, extending packing life by 2–5 times and reducing flush water requirements. Expellers are manufactured from the same high-chrome alloys (A05 or A07) as the main impeller and wear gradually over time—as the expeller vanes wear, their sealing effectiveness decreases and stuffing box pressure rises. Important limitations: expellers only function while the pump is rotating, so slurry can enter the seal area during shutdown unless a centrifugal seal or other static backup is provided. ATF manufactures replacement expellers with vane geometry matched to OEM specifications for all major pump brands.
When should frame plate liners be replaced?
Frame plate liners should be replaced when wall thickness approaches the minimum specified by the OEM—typically 50–60% of the original casting dimension. The most common wear zones are the area directly behind the impeller back shroud where recirculating flow creates turbulent erosion, the stuffing box bore where slurry leakage past the expeller causes localised attack, and the periphery where the frame plate liner interfaces with the volute liner sealing face. Watch for increased stuffing box leakage, which may indicate that the liner has worn through at the stuffing box bore, allowing slurry to bypass the designed sealing path. Inspect frame plate liners during every impeller change by measuring wall thickness at multiple points with an ultrasonic gauge and visually checking for surface cracking, rubber delamination (for R55 liners), or carbide washout (for chrome liners). Simultaneous replacement of the frame plate liner and expeller ensures proper back clearances are restored and avoids a second maintenance intervention shortly afterwards.
Why are shaft sleeves used instead of hardening the shaft?
Shaft sleeves provide replaceable wear protection that is far more economical than pump shaft replacement—a single shaft for a large slurry pump (8/6 or 10/8 frame) can cost five to ten times more than a shaft sleeve. The sleeve sits in the stuffing box zone where the shaft is exposed to abrasive slurry particles, corrosive chemicals, and the mechanical action of packing or seal faces. Sleeves can be manufactured from materials specifically optimised for wear and corrosion resistance—Ni-Resist D2C austenitic iron for good general corrosion resistance, 316 stainless steel for highly corrosive environments, or steel with chrome oxide (Cr2O3) or tungsten carbide (WC-Co) HVOF thermal spray coatings achieving 1,200+ HV surface hardness—without compromising the shaft's structural properties (tensile strength, fatigue resistance, and torsional stiffness). Surface-hardening the shaft itself would create a thin hard layer that, once worn through, exposes the base material and requires expensive shaft reconditioning or replacement. ATF supplies shaft sleeves in all standard material options with surface finishes matched to packing or mechanical seal requirements.
How do I select between packing and mechanical seals?
Selection between packing and mechanical seals depends on several interrelated factors. Conventional braided packing (typically PTFE-graphite or Kevlar composite in slurry pump applications) combined with an expeller dynamic seal works well for most mining duties where adequate gland seal water is available (typically 5–20 L/min per pump at 50–100 kPa above discharge pressure). This configuration is robust, tolerant of shaft misalignment up to 0.15 mm TIR, and can be adjusted and repacked in the field without specialised tools. Mechanical seals (single or double cartridge designs with silicon carbide or tungsten carbide faces) significantly reduce gland water consumption—often to zero in dry-running configurations—and eliminate the continuous drip leakage inherent in packed systems, which is increasingly important for environmental compliance and water conservation in arid mining regions. However, mechanical seals require cleaner flush water (filtered below 50 microns), tighter shaft alignment (below 0.05 mm TIR), and more skilled maintenance personnel. ATF engineering evaluates your specific duty conditions to recommend the optimal sealing solution.

Related Slurry Pump Parts

Impellers

High-chrome and rubber impellers for centrifugal slurry pumps.

Mehr erfahren

Volute Liners

Discharge-side casing liners forming the pump volute chamber.

Mehr erfahren

Throatbush Liners

Suction inlet protection and impeller clearance control.

Mehr erfahren

Technischer Inhalt geprüft vom ATF-Ingenieurteam | Metallurgische Spezifikationen verifiziert nach ASTM/ISO-Normen

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