Airtac TWG Stop Cylinder TWG50X30SR
Genuine AirTAC adjustable mounting height stopper cylinder, order code TWG50X30SR from the TWG50 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- Stroke30 mm
- StopperRoller
- MagnetMagnet
- ActionDouble acting
- MountingFlange, adjustable mounting height
- BoreØ50 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 TWG50X30SR
The TWG50X30SR pairs the Dia 50 mm double-acting TWG body and a 30 mm stroke (tolerance +1.0/0 mm) with the R-coded roller stopper, and carries the S magnet for position detection. The free-spinning roller meets moving pallets and boxes with rolling rather than sliding contact, presenting a low-friction face to the load, while air through the PT1/8 ports raises and lowers the stopper between cycles.
Working pressure is 0.15-1.0 MPa with 1.5 MPa (215 psi) proof pressure and -20 to +70 C temperature, on air filtered by a 40 um element; lubrication is not required. The flange with adjustable mounting height sets the roller to the load line, and the bumper cushion plus the thicker piston rod help the unit absorb impact. Check the catalog impact load and speed charts when sizing the Dia 50 bore for your line speed.
Airtac TWG Stop Cylinder TWG50X30SR Technical Specifications
| Order code | TWG50X30SR |
|---|---|
| Product | Adjustable mounting height Stopper Cylinder |
| Stroke | 30 mm |
| Stopper | Roller |
| Magnet | Magnet |
| Action | Double acting |
|---|---|
| Mounting | Flange, adjustable mounting height |
| Bore | Ø50 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 the SR when a plain roller is enough and you do not need a shock absorber in the stopper: TWG50X30SK adds the lever roller with adjustable oil cushion for softer stops, and TWG50X30SKF adds the self-lock on top of that. The same Dia 50 body is also ordered with 20 mm or 25 mm strokes if the 30 mm lift is more than the line needs, and leaving out the S orders the cylinder without magnet if no sensor feedback is planned.
Applications
Roller conveyor stops
The R roller rolls with the incoming load instead of skidding it, so cartons arrive undamaged at the stop position and the magnet confirms the raised state.
Tote and carton sortation
Adjustable flange height aligns the roller with the load line across mixed container heights, and the 30 mm stroke gives a clear pass-through when lowered.
Machine part release
On transfer lines, the Dia 50 double-acting body lifts and drops the roller stopper under air control, with the magnet feeding position back to the PLC.
FAQ
What are the key figures of the TWG50X30SR?
Double acting, Dia 50 mm bore, 30 mm stroke with +1.0/0 mm tolerance, PT1/8 ports, 0.15-1.0 MPa operating pressure, 1.5 MPa (215 psi) proof pressure, -20 to +70 C, bumper cushion, roller stopper (R), built-in magnet (S), no lubrication required on 40 um filtered air.
How is the SR roller different from the K lever roller on this cylinder?
The R stopper is a simple free-spinning roller in the load path, giving rolling contact without an oil shock absorber. The K stopper uses a lever with a roller and an adjustable oil cushion for a softer stop, and is the only version that accepts the F self-lock; if your loads arrive hard or can roll back, look at the SK or SKF codes instead.