Airtac TWG Stop Cylinder TWG40X25C
Genuine AirTAC adjustable mounting height stopper cylinder, order code TWG40X25C from the TWG40 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- Stroke25 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 TWG40X25C
Within the TWG series of adjustable mounting height stopper cylinders, the TWG40X25C pairs a Dia 40 mm bore with a 25 mm stroke (tolerance +1.0/0 mm). It is double acting, so air both raises and lowers the stopper through the PT1/8 port, and the flange mounting lets you set the stopper height directly on the machine. Operating pressure is 0.15-1.0 MPa, with proof pressure of 1.5 MPa (215 psi) and a working temperature range of -20 to +70 C.
The C option specifies the round rod stopper, the simplest of the four rod ends listed in the ordering table (C round rod, B flat rod, R roller, K lever roller). The cylinder uses a bumper cushion, runs on air filtered by a 40 um element, requires no lubrication and follows JIS standards. No magnet is fitted on this code, so position sensing with magnetic switches is not part of this configuration.
Airtac TWG Stop Cylinder TWG40X25C Technical Specifications
| Order code | TWG40X25C |
|---|---|
| Product | Adjustable mounting height Stopper Cylinder |
| Stroke | 25 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
Choose TWG40X25C when you want the basic round rod contact face with the mid-range 25 mm stroke. For a damped stop pick TWG40X25K (lever roller with adjustable oil cushion), for a flat face TWG40X25B, or for rolling contact TWG40X25R. If 25 mm is not the right travel, the stroke siblings are TWG40X20C and TWG40X30C. Because this code has no magnet, add S to the order code if you plan to fit magnetic position switches.
Applications
Pallet stop at a workstation
Raise the round rod to stop a pallet at a manual pick or assembly station, then lower it to release; the flange mounting sets the rod height to match the pallet edge.
Accumulation zones on box conveyors
Hold cartons in a queue between operations on the 25 mm stroke and release them one at a time, with the simple round rod end suited to box edges and frames.
Carton indexing before a case packer
Cycle the double acting cylinder up and down to gate cartons in front of a packaging machine, running on standard filtered air with no lubricator needed.
FAQ
What are the key figures of the TWG40X25C?
Dia 40 mm bore; 25 mm stroke with +1.0/0 mm tolerance; double acting; PT1/8 port; operating pressure 0.15-1.0 MPa; proof pressure 1.5 MPa (215 psi); temperature -20 to +70 C; bumper cushion; round rod stopper (C); no magnet; flange mounting with adjustable stopper height.
How is the stopper height set on this cylinder?
The TWG series mounts on a flange with adjustable mounting height, so you position the raised round rod at the height your load needs and secure it on the machine frame. The exact adjustment travel is not listed in this summary, so confirm the dimension from the TWG datasheet before designing the bracket.