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TWG series Stopper Cylinder: Height-adjustable, double-acting stopper cylinder; flange-mounted with a cylindrical body; designed specifically for stopping applications at assembly line stations.
Operating Principle: When air is supplied, the cylinder piston rod extends to block the workpiece pallet or carrier moving along the conveyor line, thereby positioning and stopping it at the workstation; when the air supply is cut off, the piston rod retracts, releasing the carrier.
Available in two versions: double-acting and single-acting (retraction-type):
1. – Double-acting: Air pressure on both sides controls extension and retraction.
2. – Single-acting (retraction-type): Air pressure causes retraction, while a spring automatically extends the rod to the blocking position when the air supply is cut off.
Various rod end types available: cylindrical (C), flat cylindrical (B), roller (R), and lever-type roller with adjustable hydraulic shock absorber (K).
A self-locking mechanism is available as an option: the lever-type roller stopper cylinder is equipped with a self-locking device that prevents the rocker arm from rebounding and pushing back against the blocked object.
A thickened piston rod effectively enhances the cylinder’s resistance to impact.
Can be equipped with a magnet (magnetic ring).
| Bore diameter (inner diameter mm) | 32 | 40 | 50 | |
| Type d'action | Double-acting type, single-acting pilot-operated type | |||
| Milieu de travail | Air (filtré à travers un tamis à mailles de 40 µm) | |||
| Plage de pression de service | Type à double effet | 0.15~1.0Mpa(22~145psi) | ||
| Single-acting push-type | 0.2~1.0Mpa(28~145psi) | |||
| Résistance à la pression garantie | 1.5Mpa(215psi) | |||
| Température de fonctionnement | -20 °C à 70 °C | |||
| Travel tolerance range | +1.0 | |||
| Cushioning type | Plaque anti-collision | |||
| lubricating | NO | |||
| Méthode d'installation | Flange type (adjustable installation height) | |||
| Blocking method | Cylindrical, flat cylindrical, roller, and roller lever types (with adjustable cushioning) | |||
| Connection port size | PT1/8 | |||
Les types de filetage disponibles pour le raccordement sont notamment les filetages PT, G et NPT.

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Fabricants de matériel pneumatique en Chine