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Cylinder With Lock, Double Acting, Single Rod CNG Series (CDNGLN40-300-D-C73L)

SMC

A cylinder with lock. Suitable for intermediate stops, emergency stops and drop prevention.
[Features]
· Uses the wedge effect to magnify the force applied to the taper ring and steel balls.
· Uses a brake shoe with superior wear resistance.
· The brake shoe length has been significantly increased (double that of the conventional model), providing outstanding durability and stable holding force.
· Structured so as not to be impacted by the quality of the lock-release air.
· The holding force is the same regardless of which direction the cylinder is locked.
· Manual override for unlocking.
· Format: non-lube type.
· Locking action: spring lock.

(i)Caution

■ SMC Product Line
Webpages for products currently without individual pages on this site will be released on an ad-hoc basis.
Refer to the manufacturer's catalog for specification and material details.
Product images may be representative images. Refer to the manufacturer's catalog for shape details.
CAD data is not supported for some model numbers.

Part Number

Configured Part Number is shown.

CDNGLN40-300-D-C73L

Product Specifications
Part Numbers
Catalog

Cylinder With Lock, Double Acting, Single Rod CNG Series Specifications

Cylinder With Lock, Double Acting, Single Rod CNG Series external appearance

Tube Inner Diameter (mm)	20	25	32	40
Lubrication	Not required (non-lubricated)
Proof Pressure	1.5 MPa
Maximum operating pressure	1.0 MPa
Minimum operating pressure	0.08 MPa
Piston Speed	*50 to 1,000 mm/s
Ambient Temperature and Operating Fluid Temperature	Without auto switch: -10°C to 70°C (no freezing)
Ambient Temperature and Operating Fluid Temperature	With auto switch: -10°C to 60°C (no freezing)
Cushioning	Rubber bumper, air cushion
Stroke Length Tolerance (mm)	Up to 800 st: (0 to +1.4)
Mount Support Type	Basic type, axial foot type, rod-end flange type, head-end flange type, rod-end trunnion type, head-end trunnion type, clevis type (use when port location is changed by 90°)

*Load restrictions exist depending upon piston speed when locked, mounting orientation and operating pressure.

Lock Specifications

Tube Inner Diameter (mm)	20	25	32	40
Locking Action	Spring locking (exhaust locking)
Unlocking pressure	0.20 MPa or more	0.25 MPa or more
Locking Starting Pressure	0.15 MPa or less	0.20 MPa or less
Operating Pressure Range	0.2 to 1.0 MPa	0.25 to 1.0 MPa
Locking Direction	Bidirectional
Holding Force (Maximum Static Load) N^*	215	335	550	860

*The holding force (maximum static load) indicates the maximum capacity, not the normal holding capacity. Therefore, be sure to select the cylinder upon checking the details on p. 864 in the SMC catalog.

Standard Stroke

For types with auto switch, also refer to the table of minimum strokes for auto switch mounting on p. 880 in the SMC catalog.

Tube Internal Diameter (mm)	^*1: Standard Stroke (mm)	Long Stroke (mm)	Maximum Manufacturable Stroke (mm)
Tube Internal Diameter (mm)	^*1: Standard Stroke (mm)	Long Stroke (mm)	Maximum Manufacturable Stroke (mm)
20	25, 50, 75, 100, 125, 150, 200	201 to 350	1,500
25	25, 50, 75, 100, 125, 150, 200, 250, 300	301 to 400
32		301 to 450
40		301 to 800

*1: Intermediate strokes not listed above are produced to order. Spacer is not used for intermediate strokes.
*2: Long stroke applies to the axial foot type and rod-end flange types.
In the case of other mounting brackets or when the long stroke limits are exceeded, the maximum usable stroke is determined using the stroke selection table.

Structure Principle Drawing

Locked state construction principle drawing

Unlocked state construction principle drawing

Spring lock (exhaust locking)

The spring force that acts on the taper ring is magnified by a wedge effect, and is conveyed to the numerous steel balls that are arranged in 2 rows. These act on the brake shoe holder and brake shoe, which locks the piston rod by tightening it using a large force.
Unlocking is accomplished when air pressure is supplied to the unlocking port. The release piston and taper ring oppose the spring force, moving to the right side, and the ball retainer strikes cover section. The braking force is released as the steel balls are moved away from the taper ring by the ball retainer.

Stopping Accuracy

(Units: mm)

Locking Method	Operating Piston Speed (mm/s)
Locking Method	100	300	500	1,000
Spring Lock	±0.3	±0.6	±1.0	±2.0

Conditions: Horizontal, Supplied pressure P = 0.5 MPa
Load weight: Upper allowable limit
Lock solenoid valve: Mounted directly to the unlocking port
Maximum value of stopping position variation from 100 measurements

Mounting Bracket Part Number

Mounting Bracket	Tube Inner Diameter (mm)
Mounting Bracket	20	25	32	40
^*1: Axial Foot Type	CNG-L020	CNG-L025	CNG-L032	CNG-L040
Flange	CNG-F020	CNG-F025	CNG-F032	CNG-F040
Trunnion Pin	CG-T020	CG-T025	CG-T032	CG-T040
^*2: Clevis	CG-D020	CG-D025	CG-D032	CG-D040
Rod End Pivot Bracket	CNG-020-24	CNG-025-24	CNG-032-24	CNG-040-24
Head End Pivot Bracket	CG-020-24A	CG-025-24A	CG-032-24A	CG-040-24A

*Foot and flange types include mounting bolt.

*1: When foot brackets are used, order two pieces per cylinder.
*2: A clevis pin and retaining ring or mounting bolt are shipped together with the clevis type.

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

: 30; 45; 60

Part Number
CDNGLN40-300-D-C73L

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Cylinder (Tube) Inner Diameter (Ø)	Stroke (mm)	Cushion	Specifications	Port thread type	Auto Switches	Lead Wire	The number of the switches	Type of Mount Support	Bellows	Custom-made Specifications
	-	1 Piece(s)		Quote	40	300	Rubber cushion	Built-in magnet	Rc	C73	3	2	Axial foot type	None	None

Basic Information

Cylinder Operation Method	Double Acting	Rod Operation Method	Single Rods	Main Body Shape	Standard
Additional Function	With fall prevention function / With Brake / With Intermediate Stop Function	Environment, Applications	Standard	End Locking	No
Valves	Presence	Operating Pressure(MPa)	0.08 to 1.0	Locking Direction	Bidirectional

Please check the type/dimensions/specifications of the part CDNGLN40-300-D-C73L in the Cylinder With Lock, Double Acting, Single Rod CNG Series series.

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1 Part Numbers

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Specification/Dimensions

type
- CDNG
- CNG
Clear
Cylinder (Tube) Inner Diameter(Ø)
20

25

32

40
Clear
Stroke(mm)
1,000

1,050

1,070

1,100

1,150

1,200

1,220

1,250

1,260

1,270

1,300

1,400

1,450

1,500

10

15

20

25

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32

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40

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47

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55

60

65

70

74

75

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95

100

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108

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115

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140

145

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158

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215

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285

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355

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450

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675

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780

785

800

810

820

830

850

860

870

890

900

915

920

925

930

950

970

980
Clear
Cushion
Air cushion

Rubber cushion
Clear
Specifications
- Built-in magnet
- Without magnet
Clear
Port thread type
- NPT
- Rc
Clear
Auto Switches
G5NB

G5NT

H7B

H7BA

H7BW

H7C

H7NW

H7PW

H7A1

H7A2

F9G

M9B

M9BA

M9BAV

M9BV

M9BW

M9BWV

M9N

M9NV

M9NW

M9NWV

M9P

M9PV

M9PW

M9PWV

B53

B54

B59W

K59W

C73

C73C

C76

C80

A90

A93

A93V

A96

Without switch
Clear
Lead Wire
- 0.5
- 0.5 (M8 3-pin plug connector)
- 0.5 (M8 4-pin plug connector)
- 0.5 (M12 4-pin A-cord [normal-key] plug connector)
- 1
- 1 (M8 3-pin plug connector)
- 1 (M8 4-pin plug connector)
- 1 (M12 4-pin A-cord [normal-key] plug connector)
- 3
- 5
Clear
The number of the switches
1

2

3

4

5

6

7

8

10
Clear
Type of Mount Support
- Axial foot type
- Basic type
- Clevis shape
- Head-end flange
- Head end trunnion type
- Rod-end flange type
- Rod end trunnion type
Clear
Bellows
Heat-resistant tarpaulin

None

Nylon tarpaulin
Clear
Custom-made Specifications
- None
- With coil scraper
- With powerful scraper
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

21 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Products like this...

Part Number
CDNGBA20-100-D-H7BS
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CDNGBA20-100-D-M9BL
CDNGLN40-300-D-C73L3
CDNGLN40-300-D-H7A14
CDNGLN40-300-D-H7BW

Standard Unit Price	Minimum order quantity	Days to Ship	Cylinder (Tube) Inner Diameter (Ø)	Stroke (mm)	Cushion	Specifications	Port thread type	Auto Switches	Lead Wire	The number of the switches	Type of Mount Support	Bellows	Custom-made Specifications
-	1 Piece(s)	Quote	20	100	Air cushion	Built-in magnet	Rc	H7B	0.5	1	Basic type	None	None
-	1 Piece(s)	Quote	20	100	Air cushion	Built-in magnet	Rc	M9B	0.5	2	Basic type	None	None
MYR 3,420.67	1 Piece(s)	21 Day(s)	20	100	Air cushion	Built-in magnet	Rc	M9B	3	2	Basic type	None	None
-	1 Piece(s)	Quote	40	300	Rubber cushion	Built-in magnet	Rc	C73	3	3	Axial foot type	None	None
-	1 Piece(s)	Quote	40	300	Rubber cushion	Built-in magnet	Rc	H7A1	0.5	4	Axial foot type	None	None
-	1 Piece(s)	Quote	40	300	Rubber cushion	Built-in magnet	Rc	H7BW	0.5	2	Axial foot type	None	None

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Cylinder With Lock, Double Acting, Single Rod CNG Series (CDNGLN40-300-D-C73L)

(i)Caution

Cylinder With Lock, Double Acting, Single Rod CNG Series Specifications

Lock Specifications

Standard Stroke

Structure Principle Drawing

Stopping Accuracy

Mounting Bracket Part Number

Basic Information

Configure

Specification/Dimensions

type

Cylinder (Tube) Inner Diameter(Ø)

Stroke(mm)

Cushion

Specifications

Port thread type

Auto Switches

Lead Wire

The number of the switches

Type of Mount Support

Bellows

Custom-made Specifications

CAD