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Do your chains have to withstand severe conditions, corrosive environments, extremes in temperature,
outdoor applications - then Tsubaki Engineering Chains will help to
secure the competitive edge you need. While conventional chains are
"OK", our specially designed and tested chains will show you
just how far your money ought to be going and deliver hour after
uninterrupted hour of trouble-free performance. From Nickel Plated to
Titanium, Tsubaki has High-Tech Chain to deliver superior performance under the most extreme conditions.
Corrosion resistance guide
See our corrosion
resistance guide for more information.
For slightly corrosive environments
(exposure outdoors, to
seawater, etc.)
NP 
steel + special nickel plating
- Suitable for outdoor conditions
exposed to rain
- Caution: avoid applications involving
chain-food contact. SS chain is recommended
- RS25NP - pitch 6.35 mm
- RS35NP - pitch 9.525 mm
- RS40NP - pitch 12.70 mm
- RS50NP - pitch 15.875 mm
- RS60NP - pitch 19.05 mm
- RS80NP - pitch 25.40 mm
- RS100NP - pitch 31.75 mm
- RS120NP - pitch 38.10 mm
WP

steel + special double surface treatment
- Same maximum allowable load as
standard roller chain
- More corrosion resistant than NP type;
suitable for long exposure to seawater
- Other characteristics same as NP type
- RS40WP - pitch 12.70 mm
- RS50WP - pitch 15.875 mm
- RS60WP - pitch 19.05 mm
- RS80WP - pitch 25.40 mm
DP

steel + special double surface treatment
- Does not use chromium
- Resistant to acid rain
- Other characteristics same as WP type
- RS35DP - pitch 9.525 mm
- RS40DP - pitch 12.70 mm
- RS50DP - pitch 15.875 mm
- RS60DP - pitch 19.05 mm
- RS80DP - pitch 25.40 mm
- RS100DP - pitch 31.75 mm
For corrosive environments
SS

SUS304
- The most standard chain for special
environments
- Suitable for corrosive conditions
involving food, chemicals, pharmaceuticals, etc.
- Suitable for high and low temperature
conditions
- RS11SS - pitch 3.7465 mm
- RS25SS - pitch 6.35 mm
- RS35SS - pitch 9.525 mm
- RS40SS - pitch 12.70 mm
- RS50SS - pitch 15.875 mm
- RS60SS - pitch 19.05 mm
- RS80SS - pitch 25.40 mm
- RS100SS - pitch 31.75 mm
- RS120SS - pitch 38.10 mm
- RS140SS - pitch 44.45 mm
- RS160SS - pitch 50.80 mm
- RS180SS - pitch 57.15 mm
- RS200SS - pitch 63.50 mm
- RS240SS - pitch 76.20 mm
AS

SUS630 + SUS304
- 50% higher maximum allowable load than
SS type
- Other characteristics same as for SS
type
- RS40AS - pitch 12.70 mm
- RS50AS - pitch 15.875 mm
- RS60AS - pitch 19.05 mm
- RS80AS - pitch 25.40 mm
For highly corrosive environments
(hydrochloric acid,
sulfuric acid, alkali and other special environments)
NS

SUS316
- More highly resistant to corrosion
than SS type
- Suitable for high and low temperature
conditions
- Non-magnetic
- RS25NS - pitch 6.35 mm
- RS35NS - pitch 9.525 mm
- RS40NS - pitch 12.70 mm
- RS50NS - pitch 15.875 mm
- RS60NS - pitch 19.05 mm
- RS80NS - pitch 25.40 mm
TI

titanium
- More highly resistant to corrosion
than NS type
- Suitable for high and low temperature
conditions
- Non-magnetic
- 50% lighter than steel
- RS35TI - pitch 9.525 mm
- RS40TI - pitch 12.70 mm
- RS50TI - pitch 15.875 mm
- RS60TI - pitch 19.05 mm
For maintenance free and sanitary
environments
LS

SUS304 + engineering plastic
- Lube-free (maintenance free,
sanitary)
- Suitable for wet conditions
- Resistant to pharmaceuticals &
chemicals
- Low noise functioning when using
Delrin rollers
- RF2040LS - pitch 25.4 mm
- RF2050LS - pitch 31.75 mm
- RF2060LS - pitch 38.1 mm
- RF2080LS - pitch 50.8 mm
PC

SUS304 + engineering plastic
- Needs on oil (maintenance free,
sanitary)
- More resistant to pharmaceuticals than
S-CS type
- Low noise
- 50% lighter than steel
- RS25PC - pitch 6.35 mm
- RS35PC - pitch 9.525 mm
- RS40PC - pitch 12.70 mm
- RS50PC - pitch 15.875 mm
- RS60PC - pitch 19.05 mm
PC-SY

titanium + special engineering plastic
- More resistant to pharmaceuticals than
stainless steel chain
- Does not absorb most chemicals (sulfuric
acid, hydrochloric acid, etc.)
- Maintenance free
- Sanitary
- RS40PC-SY - pitch 12.70 mm
- RS50PC-SY - pitch 15.875 mm
- RS60PC-SY - pitch 19.05 mm
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