One: AT Pneumatic actuator product overview
       AT New type of gear rack type pneumatic actuator integrated the latest technology at home and abroad, through the CAD 3D model innovation and optimized design, beautiful appearance, compact and modern styling; using new technology and materials, the utility model, the quality and performance of products more reliable; specifications selection is more economical; products in full compliance with the latest international standards the technical specifications, to meet current and future needs.

Two: AT Pneumatic actuator product characteristics
1 , Double symmetrical structure of gear and rack design, fast and stable movement, high accuracy, high output power, through a simple change of piston assembly position, can be reversed rotation.
High quality Aluminum Alloy cylinder

2, Extrusion, by hard anodic oxidation by the precision machining of the inner hole and the outer surface (special case of anodic oxidation + Teflon coating), long service life, low coefficient of friction.

3, One-piece design, all double acting and single acting actuator models all have the same cylinder block and end cover. It is very convenient to change the mode of action by adding spring or removing spring.

4, Combination type pre loading safety spring set, it can install and increase or decrease the number of springs conveniently and safely no matter in the process of assembly or in use.

5, The external side of the two separate adjusting screw for actuator installed in the valve is more accurate and convenient, valve opening and valve closed position, such as the full stroke adjustment is also on the two end cap long screw configuration.

6, Multi position indicator, scene visualization instruction, with VID/VIE3845, NAMUR standard tank can be installed, and the output of all accessories such as limit switch box, electric positioner, position sensor (Bei Jiafu, Turck).
7, Air source interface conforms to NRMAR standard and can be installed directly with NUMAR standard solenoid valve.

8, The back of the rack composite material, bearing and piston guide ring and output shaft bearings, in order to prevent metal to metal friction, and increase lubrication, make it low friction and long life.

9, All fasteners are made of stainless steel, long-term corrosion resistance.

10, The connection part conforms to the new international standard ISO5211, DIN3337 (F03-F25), so that the production and installation of interchangeability, versatility.

Three: Double acting principle（ATD）

CCW：
A inlet air. Compressed air to overcome spring force. Driving the piston outward movement, the actuator output shaft counterclockwise rotation (0 degrees to 90 degrees), B port exhaust;
The actuator loses air, and the piston moves inward under the influence of the spring force. The actuator output shaft rotates clockwise (90 degrees to 0 degrees) and the exhaust at the A port.

CW：
A intake air, compressed air to overcome the spring force. Push the piston outward movement, the actuator output shaft clockwise rotation (0 degrees to 90 degrees), B port exhaust;
The actuator loses air. The piston moves inward under the influence of the spring force. The actuator output shaft rotates counterclockwise (90 degrees to 0 degrees), and the exhaust at the A port.

Four : single acting working principle（ATE）

CCW：
A intake, compressed air to drive the piston outward movement, so that the actuator output shaft counterclockwise rotation (0 degrees to 90 degrees), B exhaust port.
B intake, compressed air to push the piston inward movement, so that the actuator output shaft clockwise rotation (90 degrees to 0 degrees), A port exhaust.

CW：
A intake, compressed air to drive the piston outward movement, so that the actuator output shaft clockwise rotation (0 degrees to 90 degrees), B port exhaust.
B intake, compressed air to push the piston inward movement, so that the actuator output shaft counterclockwise rotation (90 degrees to 0 degrees), A port exhaust.

Five: AT pneumatic actuator technical parameters

Fluorine or silicone rubber

        Pneumatic actuator Is the important executive mechanism of industrial automation control system, remote centralized control can meet the needs of computer program; now widely used in petroleum, chemical industry, gas equipment, nuclear power equipment, water treatment, air conditioning, iron and steel metallurgy, industrial furnace, canned equipment, brewing equipment, drying equipment, vacuum equipment, surface treatment, bio pharmaceutical, food machinery, textile, papermaking and other industries.

Oilfield Industry	Industrial furnace	Food machinery
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