Airtac TWG Stop Cylinder TWG40X30KF
Genuine AirTAC adjustable mounting height stopper cylinder, order code TWG40X30KF 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, self-lock
- 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 TWG40X30KF
TWG40X30KF is the top option stack of the TWG40 series: a lever roller stopper with an adjustable oil shock absorber, plus the F self-lock. The self-lock stops the lever from springing back, which prevents the stopped load from being pushed backwards after impact. On an accumulation conveyor where a stopped pallet is nudged by the pallets behind it, that lock is what keeps the first pallet parked instead of creeping forward.
Beyond the KF option, the cylinder is the standard TWG40 platform: Dia 40 mm double acting bore, 30 mm stroke (+1.0/0 mm tolerance), flange mounting with adjustable height so you set the stopper level on your machine, PT1/8 port and 0.15-1.0 MPa operating pressure. It runs on air filtered by a 40 um element and needs no lubrication.
Airtac TWG Stop Cylinder TWG40X30KF Technical Specifications
| Order code | TWG40X30KF |
|---|---|
| Product | Adjustable mounting height Stopper Cylinder |
| Stroke | 30 mm |
| Stopper | Lever roller, adjustable oil cushion, self-lock |
| 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
TWG40X30KF differs from TWG40X30K only by the F self-lock appended to the same lever roller and oil cushion; choose KF whenever loads behind the stop point could shove the stopped product, and plain K when they cannot. Against the fixed ends, C round rod, B flat rod and R roller all stop harder and cannot lock, so KF is the choice for damped, non-spring-back stopping. The same lever roller and self-lock are available in 20 mm and 25 mm strokes as TWG40X20KF and TWG40X25KF, and adding S gives the magnet variant for sensor detection.
Applications
Accumulation stop with back pressure
On lines where upstream pallets push against the stopped one, the F self-lock keeps the lever from springing back so the lead pallet holds position.
Pallet pickup stations
Park incoming pallets at a repeatable height-adjusted stop with damped lever contact, ready for transfer or pick without backward creep.
Box queue control in order fulfilment
Hold the first carton of a queue firmly while following cartons arrive; the oil cushion softens each impact and the self-lock resists push-back.
FAQ
What are the key figures of the TWG40X30KF?
Dia 40 mm bore, 30 mm stroke (+1.0/0 mm tolerance), double acting, lever roller stopper with adjustable oil cushion plus F self-lock, 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.
When do I need the F self-lock on this lever roller stopper?
Choose TWG40X30KF when the stopped load could be pushed backwards, for example by products queuing behind it on the conveyor: the self-lock stops the lever from springing back after impact and holding the load against push-back. If your line guarantees no push-back and you only want the damped lever stop, the same cylinder without F is TWG40X30K.