specialised | Castors for corrosive environments

Powder coated

We have powder coated castors specially designed for corrosive environments (particularly shower chair applications). Our powder coated castors are first zinc plated and then powder coated so as to better resist corrosion from substances such as alkaline soaps and other cleaning agents. The castors have stainless steel bottom races and twin ball races with stainless steel balls covered by a diaphragm shroud to stop water entering from above (the top race is zinc plated only). The castors are powder coated in Interpon colour "Anodic Natural Matte".

The wheels are available with a plain acetal (corrosion free) bush or a stainless steel precision bearing. Threadguards prevent the build-up of hair and lint.

Stainless steel

Our stainless steel castors are the premium castors for corrosive environments. With a wide range of styles and load capacities available, we have castors to suit almost all corrosive applications.

All castors in our stainless steel range are completely corrosion-free with all metal components made from stainless steel.

Chemical resistance

Chemical resistance of materials used in castors and wheels.

The castors and wheels we make have worked well for many years in many uses and places around the world. However, sometimes you may want to apply them in places for more corrosive than the usual industrial environment.

We lay out here what can be expected from some of the more severe chemicals used, and ask that if you plan to use our products under severe conditions that you contact us with full details beforehand and we will be pleased to advise you.

Chemical Resistance
Resistance - G = Good, F = Fair, P = Poor
Chemical PU Nylon Rubber TPE Polypropylene Cast Iron S/Steel
Sulphuric acid 10% G G P G G P F
Hydrochloric acid 10% F P P F F P P
Nitric acid 10% P P P F G P G
Methyl alcohol F G F G G G G
Sodium hydroxide 20% F-P G F G G G G
Gasoline 100% G G P F F G G
Ethylene glycol G G P F F G G
Brake fluid F-P G P G G G G
Sodium chloride (salt) incl. marine environments G G G G G G P
Carbon tetrachloride F P P G F F G-F
Fresh water immersion G P G G G G G
Dry heat 10% G G G G G G G
Outdoor weathering G G G G G G G

Powder coated M series

M-powder-hero.tif
  • Twin ball race with stainless steel balls covered with diaphragm buffer (2 sizes available) to lock out water
  • Stainless steel bottom race & brake rivet
  • Powder coat colour Anodic Natrual Matte
  • Stainless steel screw (Domed head axle)
  • Zinc plated pintle bolt
  • 1 year warranty in shower chair applications
  • 3 year warranty in general use subject to Conditions of Use
  • Can be fitted with M12 Pintle Bolts with Expanding Adaptors or Solid Pintels. See Fitting options.
  bearing type

Bearing Type

load capacity

Load Capacity

kg / lb
diameter width

Diameter x Tread Width

mm / inches
tyre material

Tyre Material

(Choosing wheels)
Fork Options

Fork Type

fork type

Bolt Hole
Swivel

bolt hole swivel to suit ER19 or AR19

Bolt Hole
Swivel

bolt hole swivel to suit ER22 or AR22

Bolt Hole
Total Brake

bolt hole total brake to suit ER19 or AR19

Bolt Hole
Total Brake

bolt hole total brake to suit ER22 or AR22
Wheel Only /MPH22 /MPH25 /MPHTB22 /MPHTB25
Plain

90kg

200lb

125x34

5x15/16

MJA125G.tif

TPE

MJA125G MJA125G
/MPH22
MJA125G
/MPH25
MJA125G
/MPHTB22
MJA125G
/MPHTB
Stainless Precision Ball

100kg

220lb

125x34

5x15/16

MJC125G MJC125G
/MPH22
MJC125G
/MPH25
MJC125G
/MPHTB22
MJC125G
/MPHTB
Plain

90kg

200lb

150x34

6x15/16

QTQ175-Wheel.tif

Grey rubber

QTA150G QTA150G
/MPH22
QTA150G
/MPH25
QTA150G
/MPHTB22
QTA150G
/MPHTB25
Plain

90kg

200lb

175x34

7x15/16

QTA175G QTA175G
/MPH22
QTA175G
/MPH25
QTA175G
/MPHTB22
QTA175G
/MPHTB25
Plain

90kg

200lb

200x34

8x15/16

QTA200G QTA200G
/MPH22
QTA200G
/MPH25
QTA200G
/MPHTB22
QTA200G
/MPHTB25

M series
-full stainless steel

M-hero.tif

  • 3 year warranty subject to Conditions of Use
  • Fork type 304
  • Balls type 440C
  • Chicago screw axle type 304
  • Option for regular nut and bolt S/S axle (just add"-B" to the end of the fork code)
  • Rivet & Axle bush type 303
  • TB spring type 301 full hard
  • Fork dimensions for M
  • Fitting adaptors (Fitting options)
  • Allen Keys available (2 per pack) code: SPALLENKEY5
  bearing type

Bearing Type

load capacity

Load Capacity

kg / lb
diameter width

Diameter x Tread Width

mm / inches
tyre material

Tyre Material

(Choosing wheels)
Fork Options

Fork Type

fork type


Plate
Swivel

plate swivel

Plate
Total Brake

plate total brakes

Plate
Direction Lock

plate directional lock


Plate
Fixed

plate fixed


Bolt Hole
Swivel

bolt hole swivel

Bolt Hole
Total Brake

bolt hole total brake


Bolt Hole
Direction Lock

bolt hole directional lock
Wheel Only /MSP /MSPTB /MSPDL /MSF /MSH /MSHTB /MSHDL
Plain

80kg

175lb

100x34

4x15/16

MSA100G_table.tif

Grey Rubber

MSA100G MSA100G
/MSP
MSA100G
/MSPTB
MSA100G
/MSPDL
MSA100G
/MSF
MSA100G
/MSH
MSA100G
/MSHTB
MSA100G
/MSHDL
S/S Q Ball

90kg

200lb

100x34

4x15/16

MSC100G MSC100G
/MSP
MSC100G
/MSPTB
MSC100G
/MSPDL
MSC100G
/MSF
MSC100G
/MSH
MSC100G
/MSHTB
MSC100G
/MSHDL
Plain

90kg

200lb

125x34

5x15/16

MSA125G MSA125G
/MSP
MSA125G
/MSPTB
MSA125G
/MSPDL
MSA125G
/MSF
MSA125G
/MSH
MSA125G
/MSHTB
MSA125G
/MSHDL
S/S Q Ball

100kg

220lb

125x34

5x15/16

MSC125G MSC125G
/MSP
MSC125G
/MSPTB
MSC125G
/MSPDL
MSC125G
/MSF
MSC125G
/MSH
MSC125G
/MSHTB
MSC125G
/MSHDL
Plain

100kg

220lb

125x34

5x15/16

SUQ125G.tif

PU on nylon

SUA125G SUA125G
/MSP
SUA125G
/MSPTB
SUA125G
/MSPDL
SUA125G
/MSF
SUA125G
/MSH
SUA125G
/MSHTB
SUA125G
/MSHDL
S/S Q Ball

100kg

220lb

125x34

5x15/16

SUC125G SUC125G
/MSP
SUC125G
/MSPTB
SUC125G
/MSPDL
SUC125G
/MSF
SUC125G
/MSH
SUC125G
/MSHTB
SUC125G
/MSHDL
Plain

75kg

165lb

75x32

3x11/4

MJA125G.tif

TPE

MJA75G MJA75G
/MSP
MJA75G
/MSPTB
MJA75G
/MSPDL
MJA75G
/MSF
MJA75G
/MSH
MJA75G
/MSHTB
MJA75G
/MSHDL
Plain

80kg

175lb

100x32

4x11/4

MJA100G MJA100G
/MSP
MJA100G
/MSPTB
MJA100G
/MSPDL
MJA100G
/MSF
MJA100G
/MSH
MJA100G
/MSHTB
MJA100G
/MSHDL
Plain

90kg

200lb

125x32

5x11/4

MJA125G MJA125G
/MSP
MJA125G
/MSPTB
MJA125G
/MSPDL
MJA125G
/MSF
MJA125G
/MSH
MJA125G
/MSHTB
MJA125G
/MSHDL
Plain

150kg

330lb

75x32

3x11/4

MNN100WS.tif

Nylon

MNN75WS MNN75WS
/MSP
MNN75WS
/MSPTB
MNN75WS
/MSPDL
MNN75WS
/MSF
MNN75WS
/MSH
MNN75WS
/MSHTB
MNN75WS
/MSHDL
Plain

150kg

330lb

100x32

4x11/4

MNN100WS MNN100WS
/MSP
MNN100WS
/MSPTB
MNN100WS
/MSPDL
MNN100WS
/MSF
MNN100WS
/MSH
MNN100WS
/MSHTB
MNN100WS
/MSHDL
Plain

150kg

330lb

125x32

5x11/4

MNN125WS MNN125WS
/MSP
MNN125WS
/MSPTB
MNN125WS
/MSPDL
MNN125WS
/MSF
MNN125WS
/MSH
MNN125WS
/MSHTB
MNN125WS
/MSHDL

O series
- full stainless steel

O-hero.tif

  • 3 year warranty subject to Conditions of Use
  • Fork type 304
  • Balls type 440C
  • Axle, bolt & nut type 304
  • Rivet & Axle bush type 303
  • TB spring type 301 full hard
  • Fork information for O
  bearing type

Bearing Type

load capacity

Load Capacity

kg / lb
diameter width

Diameter x Tread Width

mm / inches
tyre material

Tyre Material

(Choosing wheels)
Fork Options

Fork Type

fork type

Plate
Swivel

plate swivel

Bolt Hole
Total Brake

bolt hole total brake

Plate
Direction Lock

plate directional lock

Plate
Fixed

plate fixed
Wheel Only /OSP /OSPTB /OSPDL /OSF
Roller S/S

400kg

880lb

150x40

6x 1 9/16

HUR150.tif

PU on nylon

HUS150 HUS150/OSP HUS150/OSPTB HUS150/OSPDL HUS150/OSF
Roller S/S

400kg

880lb

200x48

8x 1 7/8

HUS200 HUS200/OSP HUS200/OSPTB HUS200/OSPDL HUS200/OSF
Roller S/S

360kg

770lb

100x50

4x2

OUR150.tif

PU on PP

OUS100 OUS100/OSP OUS100/OSPTB OUS100/OSPDL OUS100/OSF
Roller S/S

400kg

880lb

125x50

5x2

OUS125 OUS125/OSP OUS125/OSPTB OUS125/OSPDL OUS125/OSF
Plain

350kg

790lb

100x40

4x 1 9/16

ONN100WS.tif

Nylon

ONA100- ONA100WS/OSP ONA100WS/OSPTB ONA100WS/OSPDL ONA100WS/OSF
Plain

380kg

835lb

125x40

5x 1 9/16

ONA125- ONA125WS/OSP ONA125WS/OSPTB ONA125WS/OSPDL ONA125WS/OSF
Plain

400kg

880lb

150x40

6x 1 9/16

ONA150- ONA150WS/OSP ONA150WS/OSPTB ONA150WS/OSPDL ONA150WS/OSF
Plain

400kg

880lb

200x40

8x 1 9/16

ONA200- ONA200WS/OSP ONA200WS/OSPTB ONA200WS/OSPDL ONA200WS/OSF