Airtac TWG Stop Cylinder TWG40X20C
Genuine AirTAC adjustable mounting height stopper cylinder, order code TWG40X20C from the TWG40 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- Stroke20 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 TWG40X20C
The TWG40X20C is the round rod version of the AirTAC TWG40 stopper cylinder, a flange-mounted, adjustable mounting height unit that pops up to stop pallets, boxes and workpieces travelling on a conveyor. Its 40 mm bore works at 0.15-1.0 MPa (proof pressure 1.5 MPa / 215 psi), and the piston rod is deliberately thick so the stopper stands up to repeated impact loads. Action is double acting: air raises the stopper and air lowers it again.
The C suffix in the order code selects a plain round rod end, the simplest stopper face in the TWG range. This code carries no magnet, so no reed or hall sensor will read position off the cylinder body. Stroke is 20 mm with a +1.0/0 mm tolerance, the port is PT1/8, the cushion is a bumper, and the unit runs on air filtered by a 40 um element with no lubrication required.
Airtac TWG Stop Cylinder TWG40X20C Technical Specifications
| Order code | TWG40X20C |
|---|---|
| Product | Adjustable mounting height Stopper Cylinder |
| Stroke | 20 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
Pick TWG40X20C when a simple, robust stop face is enough for your load. The ordering table puts it beside TWG40X20B (flat rod, a wider contact face), TWG40X20R (roller, for loads arriving sideways) and TWG40X20K / TWG40X20KF (lever roller with adjustable oil cushion, for a softer deceleration). Round rod suits direct end-on stops at low to moderate line speeds. If you need sensor feedback of up/down position, order the magnetic version TWG40X20CS instead of this non-magnetic code.
Applications
Pallet stop station
The round rod rises 20 mm into the path of a roller or chain conveyor pallet, stopping it squarely at a work or transfer position.
Tote and box stopping on accumulation lanes
A rugged rod end takes repeated box impacts between flows, while the adjustable mounting height lets the stop line up with different container base heights.
Index stop in front of a machining or assembly fixture
The thick piston rod resists impact as parts are pushed against the stopper, and the PT1/8 port keeps plumbing compact on the flange.
FAQ
What are the key figures of the TWG40X20C?
Dia 40 mm bore, 20 mm stroke (+1.0/0 mm), double acting, flange mounting with adjustable height, round rod stopper, PT1/8 port, operating pressure 0.15-1.0 MPa, proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, bumper cushion, air filtered by a 40 um element, no lubrication required, no magnet.
Can I add position sensing to the TWG40X20C later?
This code has no magnet, so sensors cannot detect piston position on it. If feedback is needed, order TWG40X20CS, which is the same 40 mm bore, 20 mm stroke, round rod stopper with the S magnet option in the ordering code.