Seal Kits · All Brands · All Bore Sizes
Pneumatic Cylinder Seal Kits & Repair Kits in Noida
NBR · Viton · PU rod + piston seal sets by bore size — SPAC, Festo, Janatics, SMC, Techno
Shri Narayan Machinery LLPsupplies pneumatic cylinder seal kits and repair kits in Noida for every common bore size from 8 mm to 200 mm. A seal kit (also called a repair kit or service kit) contains the rod seal, piston seal, wiper/scraper, and cushion O-rings needed to reseal a leaking double- or single-acting cylinder without buying a new one. We stock NBR (nitrile), Viton (FKM), and polyurethane (PU) seals rated for standard 0-10 bar pneumatic service, matched to SPAC, Festo, Janatics, SMC, and Techno cylinders as well as ISO 15552, ISO 6432, and ISO 21287 standard cylinders. We're an authorized SPAC dealer in Sector 9, Noida. Send your cylinder bore, rod diameter, and brand on WhatsApp to 9811104037 and we'll confirm the right kit and price the same day.
What's in a Seal Kit
A Janatics SK cylinder seal kit: rod seal, piston seals, wiper, and O-rings — the wearing parts that fail long before the cylinder body does.
Rod seal
Stops air leaking along the piston rod — the most common failure point on a hissing cylinder.
Piston seal
Seals the piston against the bore so the cylinder holds force instead of bleeding air from one side to the other.
Wiper / scraper seal
Keeps dust, coolant, and swarf off the rod so debris doesn't get dragged into the cylinder on the return stroke.
Cushion seals
Restore the end-of-stroke cushioning so the piston doesn't bang the end caps at full speed.
End-cap O-rings
Static seals between the barrel and the end caps — a frequent leak point on tie-rod cylinders.
Wear band
Guides the piston and takes side load; included in kits where the cylinder design uses one.
SPAC Seal Kits by Bore Size
We're an authorized SPAC dealer, so SPAC seal kits come off the shelf, keyed to the cylinder series and bore. One primary kit per bore is listed below; prices are indicative ex-GST, final price on WhatsApp.
| Bore | Kit | Price | Quote |
|---|---|---|---|
| Ø16 mm | SDVU-S Seal Kit Ø16mmFits SDVU-S mini round-body cylinder | from ₹232 + GST | |
| Ø20 mm | SDVU-S Seal Kit Ø20mmFits SDVU-S mini round-body cylinder | from ₹267 + GST | |
| Ø25 mm | SDVU-S Seal Kit Ø25mmFits SDVU-S mini round-body cylinder | from ₹309 + GST | |
| Ø32 mm | ESNC Seal Kit Ø32mmFits ESNC ISO 15552 tie-rod cylinder | from ₹534 + GST | |
| Ø40 mm | ESNC Seal Kit Ø40mmFits ESNC ISO 15552 tie-rod cylinder | from ₹628 + GST | |
| Ø50 mm | ESNC Seal Kit Ø50mmFits ESNC ISO 15552 tie-rod cylinder | from ₹813 + GST | |
| Ø63 mm | ESNC Seal Kit Ø63mmFits ESNC ISO 15552 tie-rod cylinder | from ₹902 + GST | |
| Ø80 mm | ESNC Seal Kit Ø80mmFits ESNC ISO 15552 tie-rod cylinder | from ₹1,010 + GST | |
| Ø100 mm | ESNC Seal Kit Ø100mmFits ESNC ISO 15552 tie-rod cylinder | from ₹1,082 + GST | |
| Ø125 mm | ESNC Seal Kit Ø125mmFits ESNC ISO 15552 tie-rod cylinder | from ₹2,654 + GST | |
| Ø160 mm | ESNC Seal Kit Ø160mmFits ESNC ISO 15552 tie-rod cylinder | from ₹2,225 + GST | |
| Ø200 mm | ESNC Seal Kit Ø200mmFits ESNC ISO 15552 tie-rod cylinder | from ₹2,797 + GST | |
| Ø250 mm | ESNC Seal Kit Ø250mmFits ESNC ISO 15552 tie-rod cylinder | from ₹4,110 + GST |
90+ kits in stock — other series and bore sizes on request. That includes SPAC ESC compact, SDNC, SDSU, SDVU mini, and SQ2 square-body kits, plus the magnet (-S) variants of each.
Festo, Janatics, SMC, Techno and unbranded cylinders: send bore + rod diameter + a photo on WhatsApp and we'll match the kit by dimension.
Send Cylinder DetailsWhich Seal Material: NBR, Viton, or PU?
NBR (Nitrile)
Standard compressed-air service
The default seal material for factory air at 0-10 bar. Handles compressor oils and normal ambient temperatures. If you don't know what your cylinder came with, it's almost certainly NBR.
Viton (FKM)
High temperature, aggressive media
For cylinders near ovens, furnaces, and moulding machines, or where the air carries aggressive oils and chemicals that harden NBR. Costs more, lasts where nitrile fails.
PU (Polyurethane)
High wear, side load
The hardest-wearing option for fast-cycling cylinders and applications with side load on the rod. Common as rod seals and wipers in modern ISO 15552 cylinders.
Seal Kit or Full Repair?
A seal kit is the right buy when your maintenance team is comfortable opening the cylinder, and the rod and bore are still in good shape. If the rod is scored, the bore is scratched, or you'd rather not open it at all, drop the cylinder at our Sector 9 workshop and we'll reseal and pressure-test it — most reseals are back with you in 24 to 72 hours.
Pneumatic cylinder repair servicePneumatic Cylinder Seal Kits: Frequently Asked Questions
Don't Replace the Cylinder for a Worn Seal.
Kits from ₹232 + GST. Send your bore, rod diameter, and brand on WhatsApp — we'll confirm the exact kit and price the same day, with a GST invoice and same-day Delhi NCR dispatch.