Airtac TWG Stop Cylinder TWG40X30C
Genuine AirTAC adjustable mounting height stopper cylinder, order code TWG40X30C from the TWG40 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- Stroke30 mm
- StopperRound rod
- MagnetNo magnet
- ActionDouble acting
- MountingFlange, adjustable mounting height
- BoreØ40 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac TWG Stop Cylinder TWG40X30C
The AirTAC TWG40X30C is the round rod version of the TWG40 adjustable mounting height stopper cylinder, built for stopping pallets, boxes and workpieces travelling on conveyors. Its Dia 40 mm bore is double acting, so compressed air both raises and lowers the stopper, and the thicker piston rod resists impact loads better than a slim rod would. Because the flange mounting lets you set the stopper height on the machine, one cylinder body can serve different line heights without re-machining brackets.
This exact code pairs a 30 mm stroke with the C round rod stopper end and leaves out the magnet, so there is no built-in position sensing. Stroke tolerance is +1.0/0 mm, the port is PT1/8, and the cylinder runs on 0.15-1.0 MPa of filtered air with no lubrication required, following JIS standards.
Airtac TWG Stop Cylinder TWG40X30C Technical Specifications
| Order code | TWG40X30C |
|---|---|
| Product | Adjustable mounting height Stopper Cylinder |
| Stroke | 30 mm |
| Stopper | Round rod |
| Magnet | No magnet |
| Action | Double acting |
|---|---|
| Mounting | Flange, adjustable mounting height |
| Bore | Ø40 mm |
| Strokes | 20, 25, 30 mm (+1.0/0) |
| Port | PT1/8 |
| Stopper types | Round rod, Flat rod, Roller, Lever roller, adjustable oil cushion |
| Fluid | Air (filtered by 40 µm element) |
| Operating pressure | 0.15-1.0 MPa |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to +70 °C |
| Cushion | Bumper |
| Lubrication | Not required |
Source: AirTAC Products Catalog 2026A (PDF01-P0756..P0757), TWG series specifications and ordering code.
How to choose
Within the TWG ordering code, the final letter sets the stopper end: C is the plain round rod, B the flat rod, R the roller and K the lever roller with adjustable oil cushion. Pick TWG40X30C when a simple, direct contact face is enough and the load arrives slowly enough not to need a roller or a damped stop. If your pallets strike the stopper at speed, compare TWG40X30R for a rolling contact or TWG40X30K for the oil-cushioned lever. Shorter 20 mm and 25 mm stroke versions (TWG40X20C, TWG40X25C) exist if your lift height is smaller, and adding S to the code (TWG40X30CS) brings the magnet for sensor detection.
Applications
Pallet stop on accumulation lines
Raise the round rod between roller conveyor lanes to halt pallet flow; double acting air control lets you release each pallet on demand at 0.15-1.0 MPa.
Carton gate at sortation diverts
Use the 30 mm stroke to lift a simple stop face in front of carton streams, with the flange adjusted to match the box height on the line.
Fixture present-stop in assembly cells
Park workpieces at a fixed station position with the C round rod end, then confirm presence manually or externally since this code has no magnet.
FAQ
What are the key figures of the TWG40X30C?
Dia 40 mm bore, 30 mm stroke (+1.0/0 mm tolerance), double acting, round rod (C) stopper end, no magnet, PT1/8 port, operating pressure 0.15-1.0 MPa, proof pressure 1.5 MPa (215 psi), -20 to +70 C, bumper cushion, air filtered by a 40 um element, no lubrication required, flange mounting with adjustable height.
Does this code support position sensors on the cylinder?
No. TWG40X30C is built without the magnet option, so no magnetic position sensing is built into this cylinder. If you need sensor detection of the stopper position, order the S variant instead, coded TWG40X30CS; otherwise confirm any external sensing approach from the datasheet.