1. Impact-resistant design: Features a thickened piston rod; heavy-duty models include a built-in, adjustable hydraulic shock absorber to absorb the inertial impact of pallets, thereby protecting the cylinder body and tooling.
2. Optional rod ends: Roller type suitable for assembly lines; lever-roller type features a self-locking mechanism to prevent workpiece rebound.
3. Flexible installation: Bottom flange mounting with adjustable stopping height; cylinder body equipped with mounting slots for magnetic switches on all sides.
20 years of experience in the manufacturing industry, delivering custom solutions tailored to your exact specifications and production requirements.
20+ Years ExperienceThe quality we deliver rivals that of major brands, as we strictly adhere to the technical standards of leading domestic and international labels.
ISO-Aligned QualityLocated in Liushi, Yueqing, Wenzhou, Zhejiang Province, China, our company boasts a comprehensive product component supply chain, advanced high-end equipment, and a long-standing manufacturing heritage.
Direct Factory PricingStopper cylinders—also known as stop cylinders or limit cylinders—are specialized, low-profile,
heavy-duty cylinders designed for use on assembly line conveyors.
They are used to block or release workpiece pallets and material carriers, enabling precise, fixed-point stopping at automated conveyor stations.

1. A thickened piston rod effectively enhances the cylinder’s impact resistance;
2. Heavy-duty stopper cylinders feature hydraulic shock absorbers (fixed or adjustable) to reliably absorb impact energy;
3. Lever-type roller stopper cylinders are equipped with a self-locking mechanism to prevent the rocker arm from rebounding and pushing back against the stopped object;
4. A wide range of stopper cylinder series and specifications is available for customers to choose from.
| Product Series | TWH | TWM | ||||||
|---|---|---|---|---|---|---|---|---|
| 20 | 25 | 32 | 40 | 50 | 63 | 80 | 50 | |
| Action Type | Double Acting; Single Acting (Pull-in Type) | |||||||
| Working Medium | Air (filtered through 40μm or above filter) | |||||||
| Working Temperature | -20°C ~ +70°C | |||||||
| Operating Pressure Range | D/A: 0.15~1.0MPa S/A: Bore 20 = 0.25~1.0MPa; Others = 0.2~1.0MPa | |||||||
| Proof Pressure | 1.5MPa | |||||||
| Mounting Type | Flange Mounting | |||||||
| Cushioning | Anti-collision pad | |||||||
| Proximity Sensor Thread | M5×0.5 | M8×1.0 | ||||||
| Port Thread | M5×0.8 | M5×0.8 | PT1/8 | PT1/8 | PT1/8 | PT1/4 | PT1/4 | PT1/8 |

1. A thickened piston rod effectively enhances the cylinder’s impact resistance;
2. The installation height is adjustable, and various rod-end configurations are available; models equipped with hydraulic shock absorbers offer superior cushioning performance;
3. The lever-type roller stopper cylinder features a self-locking mechanism that prevents the rocker arm from rebounding and pushing back against the stopped object;
4. Customers can choose from a wide range of stopper cylinder series and specifications.
| Bore Size (Inner Diameter mm) | 32 | 40 | 50 |
|---|---|---|---|
| Action Type | Double Acting; Single Acting (Pull-in Type) | ||
| Working Medium | Air (filtered through 40μm or above filter) | ||
| Working Temperature | -20°C ~ +70°C | ||
| Operating Pressure Range | D/A: 0.15~1.0MPa S/A: Others = 0.2~1.0MPa | ||
| Proof Pressure | 1.5MPa | ||
| Mounting Type | Flange Mounting (Adjustable Mounting Height) | ||
| Cushioning | Anti-collision pad | ||
| Port Thread | PT1/8 | PT1/8 | PT1/8 |

1. A thickened piston rod effectively enhances the cylinder’s impact resistance;
2. The mounting height is fixed, and various rod-end configurations are available; selecting a stopper cylinder equipped with a hydraulic shock absorber yields superior cushioning performance;
3. The lever-type roller stopper cylinder features a self-locking mechanism that prevents the rocker arm from rebounding and pushing back against the stopped object;
4. Customers can choose from a wide range of stopper cylinder series and specifications.
| Bore Size (Inner Diameter mm) | 20 | 25 | 32 | 40 | 50 |
|---|---|---|---|---|---|
| Action Type | Double Acting; Single Acting (Pull-in Type) | ||||
| Working Medium | Air (filtered through 40μm or above filter) | ||||
| Working Temperature | -20°C ~ +70°C | ||||
| Operating Pressure Range | D/A: 0.15~1.0MPa S/A: Bore 20 = 0.25~1.0MPa; Others = 0.2~1.0MPa | ||||
| Proof Pressure | 1.5MPa | ||||
| Mounting Type | Through Hole; Internal Thread at Both Ends | ||||
| Cushioning | Anti-collision pad | ||||
| Port Thread | M5×0.8 | PT1/8 | |||
Bag feeding, sealing head, hopper gate, carton flap folding, discharge pusher
Workpiece positioning and clamping, lifting mechanisms for loading and unloading, stopping mechanisms, and component press-fitting.
Welding fixture positioning, workpiece clamping, and component transfer
Assembly line stoppers, sorting pushers, and pallet lifting units.
Machine tool door opening/closing, workpiece feeding, and scrap ejection.
Conveyor guide plate, simple hold-down device (stainless steel version available for humid environments)