The AirTAC AirTAC MA20X35SCA Mini Cylinder 20 mm Bore 35 mm Stroke is a genuine double acting standard round-body mini air cylinder with a Ø20mm bore and 35mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
A 20 mm bore round-body cylinder sized for compact push and pull work, the MA20X35SCA is double acting and develops 157 N of push force at 0.5 MPa (72.5 psi), dropping to 131.9 N on the return stroke. Its 35 mm stroke drives an 8 mm hard-chrome plated rod inside a riveted stainless-steel barrel, a build that tolerates washdown and damp shop air far better than painted mini cylinders. Once a sensible design margin is applied, that same 0.5 MPa push leaves roughly 94 N for real work, which is enough to lift about 8 kg vertically with a 2:1 safety factor. Each stroke end is softened by a fixed anti-impact bumper pad, a deceleration pad rather than an adjustable air cushion. A position-sensing magnet is built in as standard, so CMSG, DMSG or EMSG switches clip on with no special-order piston.
| Model | AirTAC MA20X35SCA Mini Cylinder 20 mm Bore 35 mm Stroke |
|---|---|
| Series | MA mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 35 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 – 800 mm/s |
| Cushion | Fixed anti-impact bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 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.
| MA | Standard round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×35 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Pressing a code into plastic caps on a small marking fixture: the 157 N push force at 0.5 MPa gives a light, repeatable impression without crushing the part, and the 35 mm stroke clears loading by hand.
Ejecting small pharmaceutical cartons sideways out of a packaging lane: the 35 mm stroke clears a short lane in one hit while the fixed bumper pad keeps the stop quiet at 30-800 mm/s speeds.
A pivoting clamp arm on a CNC fixture works directly off the CA pivot back cover, and the standard magnet feeding a CMSG switch confirms the arm has reached the closed end before machining starts.
If 157 N of push at 0.5 MPa (72.5 psi) feels tight for the job, drop to the 16 mm bore at 100.5 N or step up to the 25 mm bore at 245.3 N. Remember that a plain MA cylinder drifts the moment air is removed or the valve centres, so add a rod lock or pilot check valve whenever the load must stay in place. The CA pivot back cover suits swinging linkages with an SDB pivot bracket, while FA flange and LB foot options anchor the body where a fixed mount is needed. Air connects through 1/8 inch ports and the rod carries an M8x1.25 male thread.
Quick checklist
At 0.5 MPa (72.5 psi) it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa (101.5 psi) those figures rise to 219.8 N push and 184.7 N pull. The theoretical ceiling for this 20 mm bore is 32 kgf at 1.0 MPa. It is double acting, so air drives the rod in both directions across a 35 mm stroke at 30-800 mm/s on a 0.15-1.0 MPa (22-145 psi) supply.
The aluminium-alloy covers and a stainless block are rolled onto the stainless-steel barrel, so nothing works loose in vibration and no paint flakes into a food or outdoor area. The 8 mm rod is hard-chrome plated carbon steel for long seal life. Fixed bumper pads absorb stroke-end impact; if the machine needs an adjustable air cushion instead, the MAC series is the related type to check.
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