Pneumatic Rotary Rack and Pinion Cylinders - RA Series / Pa

【產品特點】
The RA series are a high torque double acting rotary actuator of compact design with rotation angles of 90° or 180°. Available in 5 sizes, the double pistons transmit a turning moment range of 20 to 200 Nm to the output shaft....
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詳細介紹
產品概況:

The RA is a double?acting rotary actuator with high torque and compact installation dimensions. The unit is available in 5 different sizes, covering a turning moment range of 20 to 200Nm. As standard, all sizes are available with a turning angle of either 90° or 180°. The actuator has double pistons and toothed piston rods in a rack?and?pinion type arrangement that transmits the turning moment to the output shaft. This type of construction gives an even turning moment throughout the rotation movement. The drive shaft is robustly supported in bushings of self?lubricating plastic with a key way on the output end of the shaft. The opposite end of the shaft has a stub that can be used to accommodate end?position indication, or to facilitate hand operation of the actuator. The turning limits of the rotary actuator should be determined by external stop lugs, in order to protect the unit from the effects of excessive load inertia. The RA rotary actuator has a cylinder block of natural anodised aluminium with end covers of black anodised aluminium. To facility ease of installation compressed air is fed into the piston chambers via the standardised connection arrangement to EURO standard according to ISO 5211, VDI/VDE 3845 and NAMUR on the side of the unit. Other design variants are available on request including single acting with spring return for 90° rotation, non standard turning angles and optional surface treatments.


General Technical Data:
? International Standards : Connection arrangements - EURO standard according to ISO 5211, VDI/VDE 3845 and NAMUR
? Rotation Angles : 90° and 180°
? Versions : Double acting / Single acting (Spring return)
? Cushioning : N/A
? Installation : Direct mounting
? Mounting Position : Any

Operating and Environmental Data:
? Operating Medium : For best possible service life and trouble-free operation dry, filtered compressed air to ISO 8573-1:2010 quality class 3.4.3 should be used. This specifies a dew point of +3°C for indoor operation (a lower dew point should be selected for minus temperature operation and we recommend the use of an inline dryer) and is in line with the air quality from most standard compressors with a standard filter.
? Operating Pressure : 10 Bar maximum
? Operating Temperature : Standard  temperature -20°C to +80°C
? Pre-lubricated : Further lubrication is normally not necessary. If additional lubrication is introduced it must be continued.
? Corrosion Resistance : High resistance to corrosion and chemicals.

Material Specification:
? Body : Anodised aluminium
? End covers : Anodised aluminium (Black)
? Shaft : Zinc plated steel
? End cover screws : Zinc plated steel
? Seals : NBR (Nitrile rubber)
? Piston bearings : POM (Polyoxymethylene)
? Shaft Bearings : Polyethylene / MoS2 (Molybdenum disulfide)

性能特點:

產品類型 Rack and Pinion
功能 Double | Single
通孔尺寸 N/A
標準旋轉(度數) 90° and 180°
扭矩范圍(牛米) 20 to 202 (at 6 bar)
緩沖類型 N/A
端口尺寸 G1/8 | G1/4
最大工作壓力(Bar) 10
運行環境溫度 (C) -20 to +80
運行環境溫度 (C) -4 to 176
遙感位置 Yes
重量(公斤) 1 to 6.6
耐腐蝕的選擇 Yes
可修復 Yes
證書 Connection arrangements - EURO standard according to ISO 5211, VDI/VDE 3845 and NAMUR
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