BMM Weston Series 4

The convenient high-capacity roll-in-sterilizer for all your sterilization needs.

Finding the right sterilizer for your application is crucial. Performance, ease of use and reliability are essential for sustaining maximum productivity.

Series 4 sterilizers are the first of our roll-in range of sterilizers. The roll-in design eliminates the need for transferring loads between trolleys and helps reduce the time taken to process large volumes of work.

This unit is also available as a floor mounted unit, where a pit mounted option is not available.

Available in single and double ended versions and boasting capacties of up to 2320 litres the Series 4 is a popular choice and is available in Porous Load and Laboratory models


The Series 4 range comprises single or double-ended models with 680 x 1570mm chamber sections. The range includes models configurable for all these applications:

  • Porous Load
  • Media
  • Sealed & unseated liquids Discard, fluid, plastic & mixed Fabrics
  • Instruments
  • Glassware & plasticware Pipette tips
  • Free steaming

Standard Compliant

As with all BMM Weston sterilizers, Series 4 units are designed and built by the company in the UK to the most stringent requirements.

We operate to ISO9001:2000 plus GAMP and our machines comply with all relevant European and British product standards BS3970, PD5500 and NHS guidelines including C14, HTM 2010 and EN285

Loading equipment

BMM weston can provide various loading equipment solutions to suit your requirements.

Configurable cycles

With Series 4, cycles can be configured using discrete cycle stages, with each stage performing a separate function.

Users can also programme parameters to control each function within predefined limits and set warnings and fault conditions to parameters if specified limits are exceeded.

Main features include colour LCD touch-screen systems for easy input and reading of data, automatic sliding doors for fast loading and castors for easy manoeuvering. Various options can also be fitted — please discuss for details.

Control & quality All-in-one

Large 10.4” touch sensitive colour LCD

Capable of showing cycle data display including time, temperatures, pressure, stages and fault messages.

Screen save option when sterilizer not in use.

Special menus available for:

  • Supervisor
  • Maintenance
  • Validation
  • Cycle log store
  • Machine configuration

Control panel

The ergonomically designed Series 3 control panel incorporates the following user-friendly controls and functions:

  • Screen – printed control panel
  • 10.4” touch sensitive colour screen Thermal printer
  • Power on/off Door operation
  • Door locked indicator Stop button
  • Reset

Also located on the fascia:

  • Chamber pressure gauge Steam inlet gauge
  • Optional IMS (independent monitoring system)

Access codes

All menus, cycle selection and end of cycle authorisations are protected by codes to prevent unauthorised use.

Codes available are:

  • Operator
  • Senior operator
  • Supervisor Maintenance
  • Validation
  • Root

Key Features


Rectangular section in 316L stainless steel

Steam Jacket

For improved drying and heat retention

Water jacket Cooling System

To accelerate cooling


For maximum energy conservation

Automatic Powered Door

Pneumatic, horizontal sliding

Pressurised Door Seal

Pressure operate floating gasket for a perfect seal

Visual Display Unit

A large 10.4” TFT colour touch screen

Multiple Cycles

Up to 20 configurable cycles

Access Codes

Menus protected for authorised personnel

Data Log Store

Internal memory storage


40-column printer

Pneumatic Valves

Delivering improved reliability and performance

Load Probe

Provides optional control of sterilizing stage

Water Conservation

Water is recirculated at temperature to reduce water usage

Water Discharge Control

Ensuring discharge is kept below 70°C


St St fascia panels and Access doors are available.

Leak Rate Test

Standard and Time Set programs

Technical  DATA

Series 4 – Laboratory / Porous Load

Available models:

Series 1 – 180 to 340 litre capacity
Vertical Sliding door, 500x500mm section, Single & double ended

Series 2 – 370 to 670 litre capacity
Horizontal Sliding door, 680x680mm section, Single & double ended

Series 3 – 510 to 1370 litre capacity
Horizontal Sliding door, 680x920mm section, Single & double ended

Series 4 – 1070 to 2320 litre capacity
Horizontal Sliding door, 680x1570mm section, Single & double ended

Series 5 – 1660 to 2870 litre capacity
Horizontal Sliding door, 900x1400mm section, Single & double ended

Series 6 – Customer specific (example 6682 litre capacity)
Horizontal Sliding door, customer specific, Single & double ended