BOS Homogenisers technician assembling crankshaft and drive gear into homogeniser housing in the workshop

Gaulin cylinder blocks Spare Parts

Gaulin Cylinder Blocks – High-Pressure Pump Blocks for Homogenisers

Looking for a reliable Gaulin cylinder block for your homogeniser? Bos Homogenisers supplies OEM-compatible cylinder blocks designed for Gaulin high-pressure homogenisers used in food, dairy, pharmaceutical, biotech, and industrial processing. The cylinder block is a critical structural component of the pump section and plays a central role in pressure generation, sealing performance, and long-term machine reliability.

Gaulin homogenisers are known for their robust design and long service life. However, after years of operation under extreme pressure and cyclic loads, cylinder blocks may require inspection, refurbishment, or replacement to maintain safe and efficient operation.

If you are searching for specific Gaulin Cylinder block article numbers or want to verify which parts match your homogeniser, you can consult our complete spare parts overview at cylinder parts.

What Is a Gaulin Cylinder Block?

The Gaulin cylinder block, sometimes referred to as the pump block, is the main housing in which the plungers move back and forth to pressurise the product. It contains the pump cylinders, valve housings, and sealing interfaces required for controlled product flow and pressure build-up.

The cylinder block must withstand very high internal pressures while maintaining precise alignment between plungers, seals, and valves. Any deformation or wear directly affects homogeniser performance.

Function of the Cylinder Block in a Gaulin Homogeniser

  • Houses the pump cylinders and plunger bores
  • Supports suction and discharge valve assemblies
  • Provides sealing surfaces for gaskets and O-rings
  • Maintains precise alignment of plungers and seals
  • Withstands high cyclic pressure loads during operation

Because so many critical components interface with the cylinder block, dimensional accuracy and surface quality are essential.

Gaulin Cylinder Block Design

Gaulin cylinder blocks are typically machined from solid forged or cast material and finished to tight tolerances. The design varies depending on machine size, number of plungers, and pressure rating.

Common configurations include:

  • Single-cylinder blocks for laboratory or pilot homogenisers
  • Multi-cylinder blocks for industrial-scale production
  • Blocks with integrated valve chambers
  • Blocks designed for single-stage or two-stage operation

Compatible Gaulin Homogeniser Models

Bos Homogenisers supplies Gaulin cylinder blocks compatible with a wide range of machines, including:

  • Gaulin MC-series (MC15, MC45, MC100, MC200, MC400)
  • Two-stage homogenisers with integrated pump blocks
  • Legacy Gaulin machines still in active service

Correct identification is based on machine model, serial number, plunger size, and operating pressure.

Materials and Manufacturing

Gaulin cylinder blocks are manufactured from high-strength materials selected for pressure resistance and fatigue life:

  • High-grade stainless steel for food and pharmaceutical applications
  • Forged alloy steel for extreme pressure conditions
  • Corrosion-resistant materials for aggressive cleaning regimes

All blocks are precision-machined and inspected to ensure correct bore geometry, flatness of sealing surfaces, and valve alignment.

Wear and Damage Mechanisms

Over time, cylinder blocks may suffer from wear or damage caused by:

  • Plunger scoring or misalignment
  • Seal failure leading to erosion of sealing surfaces
  • Valve impact or cavitation damage
  • Corrosion from aggressive cleaning chemicals
  • Thermal cycling and pressure fatigue

Early detection of these issues can prevent catastrophic failure and costly downtime.

When Should a Gaulin Cylinder Block Be Replaced?

Replacement or refurbishment of the cylinder block may be required if you observe:

  • Cracks or deformation in the block
  • Out-of-round or damaged plunger bores
  • Persistent leakage despite new seals
  • Misalignment causing repeated seal or plunger failure

In some cases, blocks can be refurbished by re-machining or sleeving. In other cases, full replacement is the safest option.

Installation and Alignment Considerations

Installing a Gaulin cylinder block requires careful alignment and attention to detail:

  • Ensure mating surfaces are clean and undamaged
  • Use new gaskets and O-rings during installation
  • Verify plunger alignment and concentricity
  • Torque fasteners according to specification

Improper installation can lead to rapid wear of seals, plungers, and valves.

Maintenance Best Practices

To maximise the service life of your cylinder block:

  • Inspect plunger bores during major overhauls
  • Replace seals and guiding components on schedule
  • Monitor for unusual vibration or pressure instability
  • Use compatible materials for product and cleaning chemicals

Preventive maintenance helps avoid costly block damage.

Why Choose Bos Homogenisers?

Bos Homogenisers is a specialist supplier of aftermarket spare parts for Gaulin homogenisers. Customers worldwide rely on us for:

  • OEM-compatible Gaulin cylinder blocks
  • Support for legacy and discontinued Gaulin machines
  • Fast identification using model and serial number
  • Expert technical advice on pump block refurbishment or replacement
  • Fast worldwide delivery

How to Order a Gaulin Cylinder Block

Ordering a replacement cylinder block is a structured process:

  1. Provide your Gaulin homogeniser model and serial number
  2. Confirm operating pressure and plunger configuration
  3. Receive a quotation and technical confirmation
  4. Worldwide shipment from our European warehouse

Associated components such as plungers, seal kits, valve kits, and adaptors can be supplied together to simplify installation.

Request a Quote

If you need a reliable Gaulin cylinder block for your homogeniser pump assembly, Bos Homogenisers is your trusted partner for high-quality aftermarket components.

Email: info@boshomogenisers.com

Phone: +31 (0)123 456 789

Request a Quote for Gaulin Cylinder Block

Related Gaulin Spare Parts

Looking for other Gaulin homogeniser spare parts? Browse our complete range of Gaulin replacement components:

View all Gaulin spare parts →

Compatible Alternatives from Other Brands

Looking for cylinder blocks for other homogeniser brands? BOS Homogenisers supplies compatible replacements across all major brands:

Rannie Cylinder Blocks | Bos Cylinder Blocks | SPX Cylinder Blocks | APV Cylinder Blocks

Technical Features

Cilinder Block
Single piece precision from forged stainless steel. Standard utilized with spring loaded plunger packings with integrated water cooling. Valves & seats can be out of the following materials according to your specifications/ requirements: Rexalloy, Tungsten carbide.

Homogenising Valve
Find the perfect valve for your product. Choose from a variety of designs and materials, such as rexalloy, tungsten carbide, ceramic or diamond coating, and our one or two stage options.

Drive End
Our unique concept offers a quiet running machine with low eccentric shaft speeds. The electric driven oil pump lubricates all bearings, allowing capacity variation between 30 – 100% under full load.


Rexalloy:
Suitable for general-purpose, wear-resistantTungsten
Carbide:
Ideal for highly abrasive environment
Ceramic: Excellent chemical resistance.
Diamond Coating: Provides exceptional hardness and lifespan.

BOS Homogenisers engineer machining and inspecting homogeniser spare parts at the workshop workbench

Our sales and Partner network

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1 Alliance Fluid Handling United Kingdom Doncaster 2 Arsopi Portugal Vale de Cambra 3 Biozeen Process Tech. Switzerland/ Austria Langendorf 4 Claudio Savini & Figli Italy Milano 5 Debitron Romania Bucuresti 6 Dion Engineering Bulgaria Rousse 7 Ekso Finland Karjaa 8 FH Scandinox Denmark Tarm 9 FIPA France Pluneret 10 Frassinox Croatia Zagreb 11 GTS Spain Bergondo 12 Image Spain Madrid 13 Kuijpers Project Serve Netherlands Zelhem 14 LHS Germany Lübeck 15 Limitech Denmark Aabybro 16 Maitech Ireland Waterford 17 MP Process Poland Warsaw 18 Skala Norway Heimdal 19 Tapflo Bulgaria Sofia 20 Tapflo Croatia Matulji 21 Tapflo Hungary Szeged 22 Tapflo Kazakhstan Almaty 23 Tapflo Latvia Riga 24 Tapflo Serbia Kungälv 25 Teknoproses Turkey Ankara 26 Van der Meijden Netherlands Udenhout 27 Vantec Serbia Götene 28 Vzduchotorg Slovakia Nové M.n. Váhom

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Adres: 18 Boon Lay Way, #04-112 Tradehub 21, Singapore 609966

Bos Asia Ltd. APAC 
Adres: 18 Boon Lay Way, #04-112 Tradehub 21, Singapore 609966

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