
Genuine AirTAC adjustable mounting height stopper cylinder, order code TWG50X25C from the TWG50 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
A Dia 50 mm double acting stopper built for conveyor stopping duty, the TWG50X25C delivers a 25 mm stroke (tolerance +1.0/0 mm) through a PT1/8 port and runs on 0.15-1.0 MPa filtered air. The flange mounting lets you set the stopper height on the machine, and the bumper cushion absorbs the bump each time a pallet arrives.
The C option gives a round rod end, the plainest contact tip in the TWG range, suited to meeting a pallet or box squarely. This code is ordered without a magnet (no S in the order code), so no magnetic switch can read piston position directly; pick an S-suffixed sibling or switch externally. Lubrication is not required and the series follows JIS standards.
| Order code | TWG50X25C |
|---|---|
| Product | Adjustable mounting height Stopper Cylinder |
| Stroke | 25 mm |
| Stopper | Round rod |
| Magnet | No 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.
Within the Dia 50 bore, 25 mm stroke group, choose TWG50X25C when the load meets the stopper head-on and a rigid tip is acceptable. TWG50X25B swaps to a flat rod for wider contact, TWG50X25R adds a rolling roller, and TWG50X25K or TWG50X25KF bring the lever roller with adjustable oil cushion for softer stops. Stroke siblings TWG50X20C and TWG50X30C cover a shorter or taller lift; size the bore with the catalog impact load and speed charts.
The round rod rises into the roller path to hold each pallet at the workstation, then vents down to release it on a 25 mm lift.
Flange height adjustment lets the round rod end serve as a simple locate-and-hold rest for workpieces fed along an assembly line.
Double acting control from a PT1/8 port makes this a basic gate: air up to block cartons, air down to let the flow resume.
Dia 50 mm bore, 25 mm stroke with +1.0/0 tolerance, double acting, PT1/8 port, 0.15-1.0 MPa operating pressure, 1.5 MPa (215 psi) proof pressure, -20 to +70 C, bumper cushion, air filtered by a 40 um element, no lubrication required, round rod stopper, no magnet.
No. With no S in TWG50X25C there is no magnet, so piston position cannot be picked up by a magnetic switch. Monitor the valve signal externally, or order the magnet-equipped variant of this same round rod code if position feedback is required.