Dispatched from Chennai · Karnataka
Hydraulic & Pneumatic Seals Supplied to Bengaluru
Precision hydraulics: friction, breakaway behaviour and repeatability matter more than section thickness.
- Supplying since
- 1991
- Held ex-stock
- Seals, O-rings and packings in Chennai
- Brands represented
- 18 OEM-approved makers
The local picture
What Bengaluru runs, and what it wears out
Bengaluru's hydraulics are precise rather than heavy. Aerospace and defence establishments, the machine tool and precision engineering cluster around Peenya, Jigani and Bommasandra, CNC job shops, and the test and simulation rigs that support all of them work at modest volumes with tight tolerances and very little tolerance for leakage or stick-slip.
That shifts the specification away from the thickest section that fits and towards friction, breakaway behaviour and repeatability. PTFE-faced piston seals and low-friction rod seals hold position on a servo-controlled axis without the judder a plain elastomer lip introduces at low speed; guide elements keep a long stroke concentric; and precision O-rings do the static sealing on manifolds and accumulator blocks where a single drip is a rejection.
Raj Trading Corporation supplies these workshops from Chennai - around 350 km away, the shortest run of any city listed here - as an importer, distributor and stockist for 18 OEM-approved brands. A single piece for a prototype rig is quoted as readily as a production requirement.
Getting the goods to Bengaluru
Bengaluru is roughly 350 km from the Chennai warehouse, the shortest run on this list, and consignments move by surface transport with the buyer's carrier. Proximity is not presence: Raj Trading Corporation has no branch, office or stock point in Bengaluru, and every order is picked, invoiced and dispatched from Chennai. For prototype and R&D work it is worth sending the drawing extract with the groove dimensions rather than only a seal size.
The counter and warehouse are at Old No. 39, New No. 81, Moore Street, George Town, Chennai 600 001, Tamil Nadu. Enquiries from Bengaluru are handled by the same Chennai team that serves the local trade.
Who this serves
Industries in Bengaluru that Raj Trading Corporation supplies
Sealing components for the equipment behind Bengaluru's industrial base - cylinders, presses, pumps and process lines that cannot afford downtime.
Aerospace and defence manufacturing and its supplier base
Machine tool building and rebuild across Peenya, Jigani and Bommasandra
CNC and precision job shops serving automotive and electronics
Hydraulic and pneumatic test rigs, simulators and laboratory equipment
Electronics and electrical equipment manufacture
Robotics, automation and special-purpose machine builders
Priority ranges
Seal families that matter most in Bengaluru
Enquiries here are dominated by low-friction constructions - PTFE-faced rod and piston seals energised by an elastomer ring - and by the guide elements that make a long, precise stroke behave. Precision O-rings and back-up rings for manifolds and accumulator blocks make up most of the rest. Quantities per line are small; the specification is what takes the time.
Questions
Buying seals for Bengaluru
Questions the Chennai team is asked most often by buyers and maintenance engineers in this region.
How is stick-slip avoided on a slow-moving test rig cylinder?
By reducing breakaway friction, which usually means a PTFE-faced seal energised by an O-ring rather than a plain elastomer lip. The PTFE face slides on the rod with far less static friction, so the axis creeps smoothly instead of juddering. Rod surface finish and guide clearance matter as much as the seal, so share those if the drawing specifies them.
Can single pieces be supplied for a prototype build?
Yes - there is no minimum order quantity, and Raj Trading Corporation supplies one seal for a rig build as readily as a production schedule. For a one-off it helps to send the groove dimensions from the drawing so the closest stocked size can be checked against the design, rather than the design being bent to fit the seal.
What documentation is available with the seals?
Material and batch documentation is issued by the manufacturer of the brand supplied, so what is available depends on the brand and the item. State at the enquiry stage what the quality system needs - a test certificate, a material declaration, batch traceability - and the team will confirm what the manufacturer can provide before the order is placed rather than afterwards.
Are metric and inch series both stocked?
Both. The catalogue covers standard metric and inch O-ring series alongside metric seal profiles, which matters in Bengaluru where imported machine tools and older inch-based equipment often sit on the same shop floor. If a measured size falls between two standards, send the measurement and the team will identify which series it belongs to.
Need a seal identified for a machine in Bengaluru?
Send the part code, a drawing or a photo of the worn seal with its measured dimensions. Raj Trading Corporation will confirm the profile, material and size and quote from Chennai stock.
Contact the team