Kailing ISO standard pneumatic cylinder families include SI ISO6431 standard cylinders and DNC ISO6431 cylinders. Use this page to confirm bore, stroke, cushion, magnet, mounting type, port thread and quantity before RFQ.
- 01 SI cylinder use case
Use SI when the buyer needs an ISO6431 standard cylinder with a broad bore range, multiple mounting styles and adjustable cushion.
- 02 DNC cylinder use case
Use DNC when the machine or replacement requirement is built around DNC ISO-standard profile cylinders, optional PPV cushion and built-in magnet options.
DNC - 63 X 50 - PPV - A - LB - S2 - SI: ISO6431 standard double acting cylinder
- SID: ISO6431 double-shaft double acting type
- SIJ: ISO6431 double-shaft stroke-adjustable type
- DNC: basic type
- DNCF: cushion-pad type
- PNC: profile tube type
- SI catalog bore range includes 32-200mm
- DNC catalog reference pages show 32-100mm
- Specify stroke in mm
- DNC standard stroke list includes common values from 25mm to 500mm by bore
- Blank: no cushion on DNC ordering code
- PPV: with cushion
- DNC A: built-in magnet
- SI S: with magnet
- Blank: without magnet or standard option by series
- Basic
- LB: front and rear foot mounting
- FA/FB: front or rear flange
- CA/CB: rear clevis options
- TC/TC-M: trunnion options
SI cylinder use case
Use SI when the buyer needs an ISO6431 standard cylinder with a broad bore range, multiple mounting styles and adjustable cushion.
DNC cylinder use case
Use DNC when the machine or replacement requirement is built around DNC ISO-standard profile cylinders, optional PPV cushion and built-in magnet options.
Selection notes
Confirm bore, stroke, mounting, cushion, magnet, port size, required speed, working pressure and sensor model before quotation.
| Parameter | Value |
|---|---|
| Working medium | Air; DNC page specifies filtered air |
| SI bore range | 32, 40, 50, 63, 80, 100, 125, 160 and 200mm |
| DNC bore range | 32, 40, 50, 63, 80 and 100mm on the extracted catalog pages |
| SI pressure range | 0.1-0.9MPa; proof pressure 1.35MPa |
| DNC pressure range | Minimum 0.1MPa, maximum 1.0MPa; proof pressure 1.5MPa |
| SI temperature | -5C to +70C |
| DNC temperature | 5C to 60C |
| SI speed | 50-800mm/s |
| DNC speed | 50-500mm/s |
| DNC service life | Catalog states not less than 4000km |
| Port reference | SI: G1/8 to G1/2 by bore; DNC: 1/8 to 1/2 by bore |
SI and DNC selection reference
| Series | Standard | Bore range | Pressure | Temperature | Speed | Cushion / lubrication |
|---|---|---|---|---|---|---|
| SI | ISO6431 standard cylinder | 32-200mm | 0.1-0.9MPa; proof 1.35MPa | -5C to +70C | 50-800mm/s | Adjustable cushion |
| DNC | ISO6431 standard cylinder | 32-100mm in extracted catalog table | Min 0.1MPa; max 1.0MPa; proof 1.5MPa | 5-60C | 50-500mm/s | Standard air cushion; lubrication not required |
DNC standard stroke and sensor reference
| Bore | Standard stroke examples | Cushion stroke | Maximum stroke range | Magnetic switch minimum stroke |
|---|---|---|---|---|
| 32 | 25, 40, 50, 80, 100, 125, 160, 200, 250, 320, 400, 500 | 20 | 10-2000 | 32 |
| 40 | Common DNC standard strokes by catalog table | 22 | 10-2000 | 40 |
| 50 | Common DNC standard strokes by catalog table | 22 | 10-2000 | 50 |
| 63 | Common DNC standard strokes by catalog table | 32 | 10-2000 | 63 |
| 80 | Common DNC standard strokes by catalog table | 32 | 10-2000 | 80 |
| 100 | Common DNC standard strokes by catalog table | 32 | 10-2000 | 100 |
Frequently Asked Questions
- FAQ Can SI and DNC cylinders be quoted from a photo?
Photos help, but Kailing still needs bore, stroke, mounting style, port size, cushion, magnet requirement and quantity to quote accurately. - FAQ What does PPV mean on the DNC ordering code?
The catalog uses PPV for the DNC cushion option. Blank indicates no cushion in the DNC ordering-code section. - FAQ Which series has the wider bore range in the extracted catalog pages?
The SI table lists 32-200mm, while the extracted DNC pages show 32-100mm in the specification table.
Need a quotation?
Send the model, medium, pressure, port size, body material and quantity for review.