Air Cylinder, Standard Type, Double Acting, Single Rod CM2 Series

Brand :

SMC

Caution

See catalog for specification details.
Product pictures are representations.

Product Description

Air cylinder with female rod end available as standard.
[Features]
· Rod-end types can be selected to suit the application.
· Various mounting bracket options.
· Easy fine adjustment of auto switch position.
· Transparent switch bracket improves visibility of indicator LED.
· Single clevis and trunnion pivot brackets are available.
· Total length is shortened with boss-cut type.
· Water-resistant compact auto switch mountable.

Air Cylinder, Standard Type: Double Acting, Single Rod CM2 Series Specifications

Symbol
Double acting / Single rod, Air cushion

Bore size (mm)			20	25	32	40
Type			Pneumatic type
Operating method			Double acting, single rod
Applicable fluids			Air
Proof pressure			1.5 MPa
Maximum operating pressure			1.0 MPa
Minimum operating pressure			0.05 MPa
Ambient temperature and working fluid temperature			Without auto switch: -10°C to 70°C (No freezing) With auto switch: -10°C to 60°C (No freezing)
Lubrication			Not required (non-lube)
Stroke length tolerance			0 to +1.4 mm
Operating piston speed			50 to 750 mm/s
Cushioning			Rubber bumper, air cushion
Allowable Kinetic Energy	Rubber cushion	Male thread	0.27 J	0.4 J	0.65 J	1.2 J
	Rubber cushion	Female thread	0.11 J	0.18 J	0.29 J	0.52 J
	Air cushion (Effective cushion length mm)	Male thread	0.54 J (11.0)	0.78 J (11.0)	1.27 J (11.0)	2.35 J (11.8)
	Air cushion (Effective cushion length mm)	Female thread	0.11 J	0.18 J	0.29 J	0.52 J

Precautions
Operate the cylinder within the allowable kinetic energy.

Option: Ordering example of cylinder assembly

Cylinder model: CDM2C20-50Z-NV-M9BW

Weight list

Tube Internal Diameter (mm)		20	25	32	40
Basic weight	Basic type	0.14	0.21	0.28	0.56
	Axial foot	0.29	0.37	0.44	0.83
	Flange	0.20	0.30	0.37	0.68
	Clevis integrated	0.12	0.19	0.27	0.52
	Single clevis	0.18	0.25	0.32	0.65
	U-Shaped Clevis Type	0.19	0.27	0.33	0.69
	Trunnion	0.18	0.28	0.34	0.66
	Boss-cut / Basic	0.13	0.19	0.26	0.53
	Boss-cut/Rod flange	0.19	0.28	0.35	0.65
	Boss-cut/Rod trunnion	0.17	0.26	0.32	0.63
Additional weight per 50 mm of stroke		0.04	0.06	0.08	0.13
Weight reduction for female rod end		-0.01	-0.02	-0.02	-0.04
Option bracket	Clevis pivot bracket (with pin)	0.07	0.07	0.14	0.14
	Single knuckle joint	0.06	0.06	0.06	0.23
	Double knuckle joint (with pin)	0.07	0.07	0.07	0.20
	Pivot bracket	0.06	0.06	0.06	0.06
	Pivot bracket pin	0.02	0.02	0.02	0.03

(Increment: kg)

Calculation
Example: CM2L32-100Z (0.44 + 0.08 × 100/50 = 0.60 kg)

Basic weight: 0.44 (Foot, ø32 [32‑mm diameter])
Additional weight: 0.08 / 50 stroke
Cylinder stroke: 100 stroke