Reverse Engineered Spare Parts for PFA-Lined Magnetic Drive Pumps

Impellers, Containment Shells, Glide Bearings, and Shafts—Engineered to Your Requirements

Magnetic drive pumps with PFA linings handle the most aggressive chemicals in your plant—but the components that make them work don't last forever. Impellers erode. Containment shells degrade from permeation. Glide bearings wear down from abrasive particles. When these critical parts fail, unplanned downtime costs far more than the parts themselves.

GFT9 manufactures reverse-engineered spare parts for PFA-lined magnetic drive pumps. We don't resell OEM inventory—we analyze your specific components and manufacture precision replacements in our German facility. The result: parts that fit your pumps, arrive faster than OEM alternatives, and often perform better than the originals.

Send us your worn component or OEM part number, and we'll deliver a replacement engineered for your operating conditions.

We manufacture reverse-engineered spare parts for PFA-lined magnetic drive pumps. Our experience includes components compatible with MNK-type, SCK-type, and similar ISO/DIN standard pump designs.

  • Impellers:

    Impellers are the driving force behind pump performance. Our reverse engineering process captures hydraulic geometry, vane profiles, hub configurations, and surface finishes that determine flow characteristics.

    For applications experiencing premature wear, we offer enhanced PFA compounds with improved abrasion resistance—extending service intervals without sacrificing chemical compatibility.

    Specifications:
    - Materials: Virgin PFA, PFA-L (enhanced permeation resistance)
    - Size range: DN 25 to DN 150
    - Construction: PFA-lined with metal core for magnetic coupling
    - Balancing: Static and dynamic balancing to OEM specifications

    View Impeller Range 

  • Glide Bearings:

    Glide bearings determine pump reliability more than any other wear component. We manufacture replacement bearings optimized for your specific failure modes.

    Material Options:
    - Silicon carbide (SSiC): Maximum hardness and dry-run capability
    - Carbon/graphite: Self-lubricating applications
    - PTFE composites: Enhanced chemical compatibility
    - Custom materials: Based on wear pattern analysis

    Our engineering team analyzes failed bearings to identify failure modes—thermal expansion, abrasive wear, or chemical attack—and recommends material upgrades.

    View Glide Bearings Range 

  • Containment Shells:

    Containment shells are critical pressure boundaries and typically the most expensive OEM spare part. Our reverse-engineered shells match original dimensions while offering wall thickness optimization for your specific conditions.

    Specifications:
    - Materials: CFK (carbon fiber composite), PTFE/Carbon, PFA-lined stainless steel
    - Testing: Pressure tested before shipment
    - Critical parameters: Wall thickness, magnetic gap optimization, permeation resistance
    - Documentation: Material certificates, dimensional reports available

    View Containment Shell Range 

  • Pump Shafts:

    Pump shafts require precision concentricity and surface finish to function properly with glide bearings.

    Options:
    - PFA-sleeved steel shafts
    - Ceramic shaft options for extreme conditions
    - Precision-ground sleeves for rebuild applications

    View Pump Shaft Range 
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Wear and Tear in Magnetic Drive Pumps

Chemical pumps, especially magnetic drive pumps (mag drive pumps) are vital for industries handling corrosive chemicals and high-temperature applications. These pumps use magnetic coupling to eliminate the need for seals, reducing leakage risks. However, wear and tear can significantly affect their lifespan, especially when lined with PFA for chemical protection. Frequent wear occurs in critical components such as impellers, glide bearings, containment shells, and shafts.

Key Reasons for Wear:

Running dry: This can cause the impeller and glide bearings to overheat, leading to expansion and permanent damage.

Solid particulates: Abrasive particles within the fluid can erode containment shells and glide bearings, causing degradation over time.

Permeation: Over time, certain aggressive substances can diffuse through the PFA lining, particularly under high temperatures and pressures, leading to degradation of the underlying metal components such as containment shells.

Thermal cycling: Repeated exposure to extreme temperature changes causes material fatigue, leading to micro-cracks and eventual failure of parts like containment shells and shafts.

Compatible with Leading Magnetic Drive Pump Designs

GFT9 has reverse-engineered spare parts for pumps originally manufactured to ISO/DIN standards by major European suppliers. Our experience includes:

MNK-Type Magnetic Drive Pumps:

These heavy-duty lined mag-drive pumps are widely installed in chemical plants handling corrosive acids, chlor-alkali processes, and high-purity applications. We manufacture compatible:
• Impellers (closed design with back vanes)
• Double containment shell systems (PTFE inner shell, CFK outer shell)
• SSiC glide bearing assemblies
• PFA-lined shafts and rotors

SCK-Type Side Channel Pumps:

Self-priming designs for applications requiring suction lift. We manufacture compatible impellers and containment components.

Block Pump Configurations (MNK-B type):

Close-coupled designs with shared bearing assemblies. Our parts are manufactured to original face-to-face dimensions for direct replacement.

Legal Note

Part numbers and model designations are referenced for identification purposes only. GFT9 manufactures aftermarket replacement parts through reverse engineering and is not affiliated with original equipment manufacturers.

Faster Delivery, Better Value

When you choose GFT9 for your spare parts, you aren’t just replacing worn-out components—you’re investing in superior quality, enhanced design, and longer-lasting performance. Our clients often seek to break free from the constraints of OEM spare parts due to high prices or availability issues. At GFT9, we’ve provided cost-effective and technically advanced alternatives, offering the following benefits.

Standard Lead Time:

Typical OEM: 10-20 weeks | GFT9 3-5 weeks

Emergency Delivery:

Typical OEM: Often unavailable | GFT9 1-2 weeks (established parts)

Minimum Order:

Typical OEM: Often required | GFT9: Single pieces welcome

Pricing:

Typical OEM: Premium | GFT9: 30-50% savings typical

Customization

Typical OEM: Limited vs. GFT9 Standard practice

Support:

Typical OEM: Distributor-level | GFT9: Direct engineering access

Our lead time advantage comes from in-house manufacturing. Once we've created tooling for your specific part, repeat orders move quickly through our production system. Many customers establish blanket orders with safety stock held at our facility for immediate dispatch.

For completely new parts requiring tooling development, initial lead times are longer—typically 6-8 weeks including engineering and mold production. Subsequent orders then benefit from the faster standard lead times.

Get Started with Your Pump Spare Parts Inquiry

Whether you need a single replacement impeller or want to establish an ongoing supply partnership, our engineering team is ready to help.

Contact Options

Option 1: Send Your Requirements**
Email your OEM part numbers, drawings, or photos to sales@gft9.shop. We typically respond with feasibility and preliminary pricing within 48 hours.

Option 2: Send Your Sample

Ship your worn or failed component to our facility for analysis. We'll measure, photograph, and return your sample with a detailed quotation.

Option 3: Call Us Directly

+49 2152 9148591
Technical discussions available in German and English. We understand your urgency.


GFT9 - Advanced Fluoropolymer Devices GmbH
Hooghe Weg 16
47906 Kempen, Germany

Request Pump Spare Parts Quote

FAQ

  • Q: Are your parts truly compatible with brand-name pumps?

    A: Yes. We reverse engineer from actual pump components or OEM specifications to ensure dimensional compatibility. Many of our customers have been using GFT9 spare parts as replacements for years without issues. That said, we recommend that customers with critical applications discuss their specific requirements with our engineering team before first orders.

  • Q: What information do you need to quote spare parts?

    A: Ideally, the OEM part number or pump model designation. If those aren't available, send us:
    • Physical dimensions (we can work from your measurements)
    • Photos of the existing part• Pump nameplate information
    • Operating conditions (chemical, temperature, pressure)

  • Q: Can you improve on the original design?

    A: Often, yes. Our reverse engineering process includes failure analysis. If your parts are wearing prematurely, we can recommend material upgrades, geometry modifications, or surface treatments to extend service life. This is one of the key advantages of working with an engineering-focused supplier rather than a distributor.

  • Q: What about warranty on aftermarket parts?

    A: GFT9 provides warranty coverage for manufacturing defects. Our parts are inspected and tested before shipment. We also maintain traceability records for material certification when required.

  • Q: Can you integrate with our procurement systems?

    A: Yes. We work with several customers on blanket order arrangements, consignment stock programs, and electronic procurement integration. Our goal is to make reordering as seamless as possible for your maintenance team.

Contact Us for More Information