Service and Spare Parts
Spare parts and service for transformer oil filtration machines, vacuum systems, drying plants and control panels. Parts from the manufacturer, with technical support.
TOFM supplies spare parts for transformer oil filtration machines and vacuum systems: micron filter cartridges, bag filters, oil heaters, vacuum pumps (single stage, double stage, booster and belt driven) with their spares, and control panels. TOFM also provides installation, maintenance and breakdown support.
What service does TOFM provide?
Installation and commissioning
Support to set up, start and hand over TOFM equipment at your site, in India and export markets.
Preventive maintenance
Scheduled checks and servicing of filtration machines, vacuum pumps, heaters and control panels.
Breakdown support and repair
Technical support to find and fix faults, with replacement parts from TOFM.
Spare parts supply
Filters, heaters, vacuum pumps and pump spares, control panels and panel components.
Filters and heaters
Consumables and wear parts for oil filtration machines. Values marked Typical are typical industry values; confirm with TOFM for your machine. Images are representative.
Micron filter cartridges
Filter cartridges for transformer, lube and hydraulic oil filtration machines
Fine filter cartridges remove the small particles that lower the dielectric strength of transformer oil and wear hydraulic and lube oil systems. Replace them when the pressure drop across the filter housing rises or at the interval set for your machine.
| Ratings | 0.5, 1, 3, 5, 10 and 25 micron Typical |
|---|---|
| Types | Pleated, wound and melt-blown cartridges Typical |
| Lengths | 10, 20, 30 and 40 inch Typical |
| Used in | Transformer, lube and hydraulic oil filtration machines |
Bag filters
Filter bags and housings for coarse and pre-filtration
Bag filters catch sludge and larger particles before the oil reaches the fine cartridges, which extends cartridge life. TOFM supplies replacement bags and complete bag filter housings.
| Ratings | 1 to 100 micron Typical |
|---|---|
| Materials | Polypropylene, polyester felt and nylon mesh Typical |
| Sizes | Size 1 and size 2 bags, or as per housing Typical |
| Supplied as | Replacement bags or complete housings |
Heaters for transformer oil filtration
Low watt density immersion heaters for oil
Oil heaters warm the oil to the process temperature so water and gases leave it in the vacuum chamber. Heaters for transformer oil use a low watt density, so the oil heats evenly without local overheating or carbon build-up.
| Type | Tubular immersion heaters and heater banks |
|---|---|
| Sheath | Stainless steel or Incoloy Typical |
| Temperature | Oil controlled up to 65 °C; heater range ambient up to 150 °C |
| Rating | As per machine capacity |
Vacuum pumps and spares
Vacuum pumps for oil filtration machines, vacuum drying plants and vacuum systems, plus the spares that keep them running.
Single stage vacuum pump
Oil-sealed rotary vane pump for roughing and general vacuum duty. Simple, robust and economical.
Ultimate vacuum typically 0.1 to 0.5 mbar Typical
Double stage vacuum pump
Two rotary vane stages in series for deeper vacuum, used where oil must reach very low moisture and gas levels.
Ultimate vacuum typically 0.001 to 0.01 mbar Typical
Booster (Roots) pump
A mechanical booster mounted ahead of a rotary pump. It raises pumping speed at low pressure, so large plants reach high vacuum faster.
Used with a backing pump on larger plants
Belt driven vacuum pump
Heavy-duty pump driven by V-belts at lower speed. Common on older and large oil filtration and drying plants, and easy to maintain.
Rugged, long-life dutyVacuum pump spares
- Rotary vanes
- Shaft seals and oil seals
- Gasket and O-ring kits
- Couplings and V-belts
- Inlet filters and strainers
- Exhaust and oil mist filters
- Gas ballast valve kits
- Vacuum pump oil
Control panels
Control panels
PLC / HMI and relay-logic control panels for filtration and drying plants
TOFM builds control panels for its oil filtration machines, vacuum drying plants and drying ovens, and supplies replacement or upgraded panels. Panels bring heaters, pumps, vacuum and safety interlocks under one control point.
| Control | PLC with HMI, or relay logic |
|---|---|
| Includes | Heater and pump control, temperature controllers, vacuum and pressure indication, interlocks |
| Panel spares | Contactors, relays, MCBs, temperature controllers, RTD sensors, vacuum gauges Typical |
| Options | Upgrade of older relay panels to PLC / HMI |
Other spares
- Oil transfer gear pumps
- Flow meters
- Vacuum and pressure gauges
- Sight glasses
- Valves
- Hoses and couplings
- Gaskets and seals
How do I order spare parts?
Service and spares questions
Which spare parts does TOFM supply?
TOFM supplies micron filter cartridges, bag filters, heaters for transformer oil filtration, vacuum pumps (single stage, double stage, booster and belt driven) and their spares, and control panels and panel components.
What is the difference between a single stage and a double stage vacuum pump?
A single stage rotary vane pump has one pumping stage and suits roughing and general duty. A double stage pump has two stages in series and reaches a deeper vacuum, which helps dry and degas transformer oil to low levels.
Why do large oil filtration plants use a booster pump?
A booster (Roots) pump sits ahead of the rotary pump and raises pumping speed at low pressure. Large plants reach high vacuum faster and hold it under heavy gas and water load.
How often should micron filter cartridges be replaced?
Replace them when the pressure drop across the filter housing rises above the limit for your machine, or at the interval in the machine manual. Very dirty oil fills cartridges faster, so a bag filter ahead of them helps.
Can TOFM supply spares for machines from other manufacturers?
Often, yes. Share the machine make, model and a photo or drawing of the part, and TOFM will confirm compatibility before quoting.
How do I order spare parts?
Send the machine details, part name or photo and quantity through the contact form, WhatsApp or email. TOFM confirms compatibility and sends a quotation with dispatch time.
Request spare parts or service
Share the machine model, part details and quantity. TOFM will confirm compatibility and send a quotation.