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Cylinder With Lock, Double Acting, Single Rod CNG Series (CDNGBA25-300-D)

Cylinder With Lock, Double Acting, Single Rod CNG Series CDNGBA25-300-D

SMC

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.

PDF

Part Number

Configured Part Number is shown.

CDNGBA25-300-D

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

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

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

Tube Inner Diameter (mm)20253240
LubricationNot required (non-lubricated)
Proof Pressure1.5 MPa
Maximum operating pressure1.0 MPa
Minimum operating pressure0.08 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)
With auto switch: -10°C to 60°C (no freezing)
CushioningRubber bumper, air cushion
Stroke Length Tolerance (mm)Up to 800 st: (0 to +1.4)
Mount Support TypeBasic 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)20253240
Locking ActionSpring locking (exhaust locking)
Unlocking pressure0.20 MPa or more0.25 MPa or more
Locking Starting Pressure0.15 MPa or less0.20 MPa or less
Operating Pressure Range0.2 to 1.0 MPa0.25 to 1.0 MPa
Locking DirectionBidirectional
Holding Force (Maximum Static Load) N*215335550860

*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)
2025, 50, 75, 100, 125, 150, 200201 to 3501,500
2525, 50, 75, 100, 125, 150, 200, 250, 300301 to 400
32301 to 450
40301 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

Locked state construction principle drawing

Unlocked 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 MethodOperating Piston Speed (mm/s)
1003005001,000
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 BracketTube Inner Diameter (mm)
20253240
*1: Axial Foot TypeCNG-L020CNG-L025CNG-L032CNG-L040
FlangeCNG-F020CNG-F025CNG-F032CNG-F040
Trunnion PinCG-T020CG-T025CG-T032CG-T040
*2: ClevisCG-D020CG-D025CG-D032CG-D040
Rod End Pivot BracketCNG-020-24CNG-025-24CNG-032-24CNG-040-24
Head End Pivot BracketCG-020-24ACG-025-24ACG-032-24ACG-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
  1. 1
Part Number
CDNGBA25-300-D
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipCylinder (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 25300Air cushionBuilt-in magnetRcWithout switch--Basic typeNoneNone

Loading...

  1. 1
 

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 CDNGBA25-300-D in the Cylinder With Lock, Double Acting, Single Rod CNG Series series.

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Specification/Dimensions

  • 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

    • 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
    • 30
    • 32
    • 35
    • 40
    • 45
    • 47
    • 50
    • 55
    • 60
    • 65
    • 70
    • 74
    • 75
    • 80
    • 85
    • 90
    • 95
    • 100
    • 105
    • 108
    • 110
    • 115
    • 120
    • 125
    • 130
    • 135
    • 140
    • 145
    • 150
    • 155
    • 158
    • 160
    • 165
    • 170
    • 175
    • 180
    • 185
    • 190
    • 200
    • 205
    • 210
    • 215
    • 220
    • 225
    • 230
    • 235
    • 240
    • 250
    • 254
    • 260
    • 265
    • 270
    • 275
    • 280
    • 285
    • 290
    • 295
    • 300
    • 310
    • 315
    • 320
    • 325
    • 330
    • 340
    • 345
    • 350
    • 355
    • 360
    • 370
    • 375
    • 380
    • 400
    • 410
    • 420
    • 425
    • 430
    • 435
    • 440
    • 445
    • 450
    • 460
    • 470
    • 475
    • 480
    • 485
    • 490
    • 500
    • 505
    • 510
    • 515
    • 520
    • 525
    • 530
    • 540
    • 550
    • 560
    • 565
    • 570
    • 575
    • 580
    • 585
    • 590
    • 600
    • 610
    • 615
    • 620
    • 630
    • 640
    • 645
    • 650
    • 660
    • 670
    • 675
    • 680
    • 690
    • 700
    • 710
    • 715
    • 720
    • 725
    • 730
    • 740
    • 750
    • 760
    • 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

  • 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
    • 20 Day(s) or Less
    • 31 Day(s) or Less

    Clear

Specify Alterations

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