Airtac MAC Stainless Steel Mini Air Cylinder MAC20X185SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X185SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 185mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ20 mm
- Stroke185 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X185SCA
The MAC20X185SCA pairs a 20 mm bore with a 185 mm stroke in a riveted round-body package: a stainless-steel barrel with a hard-chrome plated rod, aluminium covers and a stainless block rolled tight onto the tube. It is double acting with a variable air cushion at both ends, pushing 157 N and pulling 131.9 N at 0.5 MPa, stepping up to 219.8 N push at 0.7 MPa with a theoretical 32 kgf ceiling at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s on air filtered to 40 um.
Because the stainless tube and chrome rod shrug off mild corrosion, this cylinder suits damp cells and wash spots where painted minis flake and pit. At 0.5 MPa plan on roughly 94 N of usable push (about 60 percent of the rating), which vertically lifts around 8 kg once you keep a 2:1 margin - enough for small gates, chutes or clamps at long reach.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X185SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X185SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 185 mm |
| Acting type | Double acting + cushion |
| 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 | Variable air cushion, both ends |
| 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.
Theoretical Output Force (Ø20mm)
| 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.
Model Code: Airtac MAC Stainless Steel Mini Air Cylinder MAC20X185SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×185 | 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.
Where the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X185SCA Is Used
Labeler gate actuation
Swinging a reject gate on a bottling line every few seconds - the CA pivot mounts directly on the lever linkage and the air cushion quiets each throw.
Sample elevator in lab automation
Raising an 8 kg sample tray carrier 185 mm between analyzer decks; the stainless barrel tolerates repeated wipe-downs with mild solvents.
Stitching head clamp
Applying light clamping pressure on an upholstery stitch bench - about 94 N of usable force holds fabric while the cushion damps the strike.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X185SCA the Right Cylinder?
At 185 mm of stroke the slim 8 mm rod wants alignment: guide side loads externally and keep the thrust in line with the bore axis. Downsize to a 16 mm bore (100.5 N push at 0.5 MPa) if the job is lighter, or step up to 25 mm (245.3 N) for more muscle. Note that with air removed the piston drifts freely, so a rod lock or pilot check valve is the fix when the load must stay put. The CA pivot back cover bolts straight onto a swinging linkage, and since the magnet is built in, CMSG / DMSG / EMSG switches clip on without any special-order piston.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X185SCA FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa those rise to 219.8 N and 184.7 N. The theoretical ceiling at 1.0 MPa is 32 kgf. Working pressure spans 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, with a variable air cushion at each end.
The 20 mm bore takes 1/8" air ports and an M8x1.25 male rod thread on an 8 mm rod. The magnet is standard, so CMSG / DMSG / EMSG switches mount on the barrel for end-of-stroke signals without any special-order piston.
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