Airtac ACE Compact Cylinder ACE20X70SB
The AirTAC Airtac ACE Compact Cylinder ACE20X70SB is a genuine double acting ISO 21287 compact air cylinder with a Ø20mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.
- BoreØ20 mm
- Stroke70 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- CushionFixed TPU bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACE Compact Cylinder ACE20X70SB
This AirTAC ACE20X70SB is a double acting compact cylinder that uses air to both extend and retract the rod. Its 20 mm bore delivers a solid 157.1 N push force at 0.5 MPa, with a pull of 117.8 N, making it a dependable choice for light automation tasks.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding. The optional -S magnet is fitted here, allowing CMSE or DMSE switches to sense the piston position. For real work, plan on about 9.6 kg of vertical lift at 0.5 MPa (157.1 N divided by 9.81, then halved for a safety margin).
Airtac ACE Compact Cylinder ACE20X70SB Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE20X70SB |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed TPU bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACE Compact Cylinder ACE20X70SB
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.
Where the Airtac ACE Compact Cylinder ACE20X70SB Is Used
Jig Clamping
Use the 157.1 N push to clamp small plastic parts in a CNC fixture, where the compact body fits under the workholding table.
Label Applicator
Drive a label tamp head on a packaging line, with the 70 mm stroke providing enough travel to press labels onto boxes.
Parts Ejection
Eject finished metal stampings from a die or mold, using the 117.8 N pull to retract the rod quickly after each cycle.
Is the Airtac ACE Compact Cylinder ACE20X70SB the Right Cylinder?
For a smaller force, consider the ACE16X70 with a 100.5 N push at 0.5 MPa, while the ACE25X70 offers a stronger 245.4 N push. This 20 mm bore is a balanced middle ground for compact jigs and light clamping. Since the rod is male-threaded (B code), you can directly attach a clevis or rod end. The M5x0.8 port is small, so ensure your air supply and fittings match. This model has the -S magnet, so you can add CMSE or DMSE sensors for position feedback. Remember, a plain ACE cylinder does not hold its position when air is lost; use a rod lock or pilot check valve for load holding.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short stroke fits the compact body
- ✓ Port/thread type (PT / G)
- ✓ Add -S if you need the magnet for sensors
- ✓ Rod type (female / male B) & mount (FA/LB/CA)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Compact body: keep the stroke short and avoid side load on the rod.
- check Do not dismantle the threaded front/back covers.
- check Keep speed within the rated range; the TPU bumper absorbs stroke-end energy.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACE Compact Cylinder ACE20X70SB FAQ
At 0.5 MPa, the push force is 157.1 N and the pull is 117.8 N. At 0.7 MPa, push rises to 219.9 N and pull to 164.9 N. The theoretical maximum force is 32 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa (22-145 psi).
It follows ISO 21287, so the body is about 50% shorter than an ISO 15552 profile cylinder, saving space in tight machines. The fixed TPU bumper at each end absorbs impact at stroke limits, but it is not adjustable and does not lock the rod. For holding a load, use a separate rod lock or pilot check valve.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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