Airtac TWG Stop Cylinder TWG40X30K
Genuine AirTAC adjustable mounting height stopper cylinder, order code TWG40X30K from the TWG40 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- Stroke30 mm
- StopperLever roller, adjustable oil cushion
- 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 TWG40X30K
TWG40X30K is the lever roller variant of the AirTAC TWG40 stopper cylinder, and the option that matters most is the adjustable oil shock absorber in the lever: it softens the moment when a moving pallet or workpiece hits the stop, reducing rebound and shock transmission into the conveyor frame. The lever roller also lets the arriving load roll onto the contact point instead of dragging across a fixed rod.
The cylinder keeps the TWG40 platform: Dia 40 mm bore, 30 mm stroke with +1.0/0 mm tolerance, adjustable mounting height on the flange, PT1/8 port and 0.15-1.0 MPa operating range. It is double acting, so air both raises and lowers the lever, and it runs on air filtered by a 40 um element without lubrication.
Airtac TWG Stop Cylinder TWG40X30K Technical Specifications
| Order code | TWG40X30K |
|---|---|
| Product | Adjustable mounting height Stopper Cylinder |
| Stroke | 30 mm |
| Stopper | Lever roller, adjustable oil cushion |
| 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
Order TWG40X30K instead of TWG40X30C (round rod), TWG40X30B (flat rod) or TWG40X30R (roller) when loads arrive with enough speed or mass that a hard contact stop would bounce or dent the product. The K lever roller comes with the adjustable oil cushion; if the stopped load or the spring-back of the lever could push your product backwards after contact, step up to TWG40X30KF, which adds the F self-lock to this same lever. Stroke siblings TWG40X20K and TWG40X25K cover smaller lift heights, and S can be added for the magnet option.
Applications
Pallet infeed stop at conveyor merges
The lever roller with adjustable oil cushion absorbs the impact of fast-arriving pallets at merge points, protecting both product and frame at up to 1.0 MPa.
Heavy workpiece stop in machining lines
Stop machined castings or fixtures gently on transfer conveyors; the oil cushion limits rebound so parts stay put for pick-up.
Case stop before case sealing
Present cartons and cases to a sealing or taping station with a damped stop that will not crush the leading flap, using the 30 mm lift.
FAQ
What are the key figures of the TWG40X30K?
Dia 40 mm bore, 30 mm stroke (+1.0/0 mm tolerance), double acting, lever roller stopper with adjustable oil cushion, 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.
What does the K option give me over the other stopper ends, and is there any locking?
K replaces the fixed C round rod, B flat rod or R roller end with a lever roller fitted with an adjustable oil shock absorber, so the stop force is damped and the load rolls onto the lever. TWG40X30K does not include the self-lock; if you need the lever held against pushing the stopped load backwards, order TWG40X30KF, the same lever with the F self-lock option.