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**Product Specifications:**
- **Model No.:** AT32-AT400
- **Trademark:** Standard or Customized
- **Specification:** AT32-AT400
- **Origin:** China
- **HS Code:** 8412390000
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**Product Features:**
1. **Position Indicator:** Equipped with a multi-functional position indicator featuring a NAMUR standard mounting groove, allowing easy installation of accessories such as valve positioners and limit switches.
2. **Output Shaft:** A high-precision one-piece gear output shaft made from nickel-plated alloy steel, compliant with ISO5211, DIN337, and NAMUR standards. It can be customized in size and is available in stainless steel options for enhanced durability.
3. **Cylinder Body:** The cylinder is constructed from ASTM6005 extruded aluminum, finished with hard anodizing. Optional surface treatments include epoxy coating, PTFE coating, or nickel plating for added protection and performance.
4. **End Caps:** Die-cast aluminum alloy end caps with a variety of color options through metal powder coating, or other surface finishes like PTFE or nickel plating for better aesthetics and corrosion resistance.
5. **Pistons:** Double piston racks made from cast aluminum with hard oxidation or galvanized cast steel. The symmetrical design ensures fast operation, long service life, and the ability to reverse the piston to change the rotation direction easily.
6. **Stroke Adjustment:** Two independent external adjustment screws allow precise ±5° positioning in both directions, making it simple to fine-tune the opening and closing positions.
7. **Spring Mechanism:** High-performance preloaded springs made from premium materials with protective coatings and pre-press assembly. They offer excellent corrosion resistance and long-lasting performance. For single-acting actuators, the spring can be easily replaced to adjust torque output range.
8. **Bearings and Guides:** Utilizes low-friction, long-life composite materials to prevent direct metal-to-metal contact, simplifying maintenance and replacement when needed.
9. **Sealing System:** Uses nitrile rubber O-rings at normal temperatures, while fluorine rubber or silicone rubber is used for high or low-temperature environments, ensuring reliable sealing performance under various conditions.
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**Product Images (Real Shots):**
[Image 1](http://i.bosscdn.com/uploads/5e/7f/83/90ec72ff7ebb8354deff531d0b.jpg)
[Image 2](http://i.bosscdn.com/uploads/e7/ce/0d/3fa6f81b6bcb28d5fc573be099.jpg)
[Image 3](http://i.bosscdn.com/uploads/9f/c3/84/2a89f5c9a23e5079a3761fc300.jpg)
[Image 4](http://i.bosscdn.com/uploads/4e/59/80/abf5d0234fe5a9f386013a1466.jpg)
[Image 5](http://i.bosscdn.com/uploads/28/92/aa/fbcf045c5d32855428f77ee409.jpg)
[Image 6](http://i.bosscdn.com/uploads/22/d1/ca/62fc52c14658de83a6dc8c92fe.jpg)
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This product is ideal for industrial applications requiring precision, durability, and flexibility. Whether you're looking for standard configurations or custom solutions, this pneumatic actuator delivers reliable performance in a wide range of operating conditions.
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