Airtac ACE Compact Cylinder ACE20X70S
The AirTAC Airtac ACE Compact Cylinder ACE20X70S 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 ACE20X70S
This AirTAC ACE20X70S is a double acting compact cylinder with a 20 mm bore and a 70 mm stroke, delivering 157.1 N of push force at 0.5 MPa. Its short ISO 21287 body takes up about 50% less mounting length than an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding where a longer cylinder would not.
The hard-anodized aluminium body and S45C hard-chrome rod resist wear in continuous cycling. With the optional -S magnet fitted, you can mount CMSE or DMSE reed or solid-state switches for position sensing. For a real-world load, plan on about 9.6 kg of safe vertical lift at 0.5 MPa, using a 2:1 margin on the theoretical 157.1 N push force.
Airtac ACE Compact Cylinder ACE20X70S Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE20X70S |
|---|---|
| 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 ACE20X70S
| 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 ACE20X70S Is Used
Fixture Clamping
Clamp small parts in a CNC vise or workholding fixture with 157.1 N push force, fitting between spindles and guards where a longer cylinder would not.
Carton Tabbing
Push adhesive tabs into place on a carton-forming line at speeds up to 500 mm/s, with the compact body fitting inside the machine frame.
Part Detection
Use the fitted magnet with a CMSE switch to confirm a part is present or a gate is closed, giving a reliable signal for the PLC.
Is the Airtac ACE Compact Cylinder ACE20X70S the Right Cylinder?
For a lighter push, the 16 mm bore ACE16X70S offers 100.5 N at 0.5 MPa, while stepping up to the 25 mm bore ACE25X70S gives 245.4 N. The 70 mm stroke is within the 100 mm maximum standard stroke for this bore, so no custom order is needed. Choose the -S magnet version if you need position feedback; without it, no sensor can be mounted. The M5x0.8 port suits small-bore applications, and the female M6x1.0 rod thread accepts standard attachments.
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 ACE20X70S FAQ
At 0.5 MPa, push force is 157.1 N and pull force is 117.8 N. At 0.7 MPa, push is 219.9 N and pull is 164.9 N. The theoretical maximum force is 32 kgf at 1.0 MPa. Operating pressure range is 0.15-1.0 MPa (22-145 psi).
The ACE20X70S body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight spaces. It has a fixed TPU bumper at both ends to absorb impact, and the optional -S magnet allows CMSE or DMSE switches for position sensing.
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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.
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Most inquiries answered within 7-8 hours.
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