Xi Lanh Khí Nén SMC CU Series CDU20 CDU25 CDU32

Xi Lanh Khí Nén SMC CU Series CDU20 CDU25 CDU32

CU Series Free Mount Cylinder With Air Cushion

[Features] · Multiple-surface direct mounting with a square body and no brackets lets you freely choose the mounting surface.
· This enables space-saving designs for equipment.
· Slightly extended dimensions relative to the CU standard models.
· There is no protrusion of the cushion valve, and the width is the same.
· 3 types of mounting orientations can be accommodated according to the installation conditions.
· Approximately 2.4 times more allowable kinetic energy.
· Improved sound insulation (reduced impact of noise at the stroke end).
· Interchangeable mounting.

Model	Pneumatic (non-lube) type
Fluid	Air
Proof Pressure	1.0 MPa
Maximum operating pressure	0.7 MPa
Minimum operating pressure	0.08 MPa
Ambient and Fluid Temperature	Without auto switch: -10°C to +70 ℃ (no freezing)
	With auto switch: -10°C to +60 ℃ (no freezing)
Rod-end thread	Male thread
Stroke Length Tolerance	0 to +1.0
Operating piston speed	50 to 500 mm/s

Effective Cushion Length

• Bore size 20 mm: effective cushion length 6.6 mm
• Bore size 25 mm: effective cushion length 6.7 mm
• Bore size 32 mm: effective cushion length 7.7 mm

Standard Stroke Table

Bore size 20 mm, 25 mm, 32 mm: standard stroke 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, 100 mm

Diagram

Drawing

(Units: mm)

 

Tube inner diameter (mm)	Port	A	A’	B	C	CA	CB	D	E	GA	GB	H	J	JA
20	M5 × 0.8	12	14	26	42	20	22	8	9	29	27	19	16	12
25	M5 × 0.8	15.5	18	32	50	25	25	10	10	32.5	22.5	23	20	15
32	1/8	19.5	22	40	62	31	31	12	11	35	25	27	24	19

(Units: mm)

 

Tube inner diameter (mm)	K	KA	L	MM	NN	P	Q	R	T	S	Z	Standard Stroke
20	30	5	6	M6 × 1.0	M5 × 0.8 depth 8	5.5	13	16	9.3 depth 8	53	72	20, 30, 40, 50, 60, 70, 80, 90, 100
25	38	6	8	M8 × 1.25	M5 × 0.8 depth 8	5.5	23.5	20	9.3 depth 9	51.5	74.5
32	48	7	10	M10 × 1.25	M6 × 1.0 depth 9	6.6	29	24	11 depth 11.5	56	83

Proper Auto Switch Mounting Position (Detection at Stroke End) and Mounting Height

(Units: mm)

 

*( ): denotes the values of D-A96.

(Units: mm)

 

*( ): denotes the values of D-M9□V/D-M9□WV.

(Units: mm)

 

Tube inner diameter (mm)	D-A9□, D-A9□V			D-M9□, D-M9□W			D-M9□V, D-M9□WV			D-M9□A			D-M9□AV
	A	B	W	A	B	W	A	B	W	A	B	W	A	B	W
20	18	15	13 (10.5)	22	19	9	22	19	11	22	19	11	22	19	13
25	20	11	9 (6.5)	24.5	15	5	24.5	15	7	24.5	15	7	24.5	15	9
32	22.5	13.5	11.5 (9)	26.5	17.5	7.5	26.5	17.5	9.5	26.5	17.5	9.5	26.5	17.5	11.5

• *1Figures in the table above are used as a reference when mounting the auto switches for stroke end detection. When actually setting the auto switches, adjust them after confirming their operation.
• *2Values in ( ) under column W are dimensions for the D-A90 and D-A93 type.

Operating Range

D-A9□, D-A9□V

Bore size 20 mm: 11 mm / Bore size 25 mm: 12.5 mm / Bore size 32 mm: 14 mm

D-M9□, D-M9□V, D-M9□W, D-M9□WV, D-M9□A, D-M9□AV

Bore size 20 mm: 7 mm / Bore size 25 mm: 7 mm / Bore size 32 mm: 7.5 mm

*The operating range is provided as a guideline that includes hysteresis and is not a guaranteed value (assuming approximately ±30% dispersion). It may vary substantially depending on the ambient environment.

Mounting

Precautions

Installation and Removal of Retaining Rings

• *Use an appropriate pair of pliers (tool for installing a type C retaining ring) for installation and removal of retaining rings.
• *Even when using an appropriate pair of pliers (tool for installing a type C retaining ring), proceed with caution as there is a danger of the retaining ring flying off the end of the pliers (tool) and causing bodily injury or damage to nearby equipment. After installation, make sure that the retaining ring is securely seated into the retaining ring groove before supplying air.

Selection

*See the manufacturer’s catalog for product information other than that detailed above.