Airtac MAC Stainless Steel Mini Air Cylinder MAC20X85SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X85SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 85mm 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
- Stroke85 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 MAC20X85SCA
The MAC20X85SCA pairs a 20 mm stainless round barrel with a hard-chrome plated rod and a riveted, rolling-packed body, so mild corrosion and washdown in damp workshops are not a problem. This is a double-acting mini cylinder: air both extends and retracts the rod, and a variable air cushion at each end absorbs end-of-stroke shock. At 0.5 MPa it pushes with 157 N and pulls with 131.9 N.
The CA pivot back cover swings on a pin, so a linkage or lever can articulate without extra brackets. At 85 mm stroke the rod travels at 30-800 mm/s. For real work, plan on roughly 94 N of usable force at 0.5 MPa - about 60 percent of the rated push - and expect it to lift around 8 kg vertically with a 2:1 margin. The built-in magnet is standard, so CMSG, DMSG or EMSG switches clip straight on.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X85SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X85SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 85 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 MAC20X85SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×85 | 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 MAC20X85SCA Is Used
Bottle-line gate diverter
The 85 mm stroke swings a diverter gate across a beverage conveyor; the pivot back cover tracks the linkage as the gate arcs.
Carton flap tuck
Folds top flaps on small cartons at a packing bench, where the 157 N push seats flaps without crushing them.
Sample tray indexer
Advances an analysis tray 85 mm between assay stations; a CMSG switch confirms home position each cycle.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X85SCA the Right Cylinder?
If 157 N of push at 0.5 MPa is more than the job needs, the 16 mm bore delivers 100.5 N; if the load grows, step up to the 25 mm bore at 245.3 N. Like every MAC, this cylinder does not hold position when air is lost - the piston drifts - so add a rod lock or pilot check valve where a load must stay put. The CA pivot back cover plus FA flange, LB foot or SDB pivot brackets cover most fixings, and the standard magnet keeps switching simple.
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 MAC20X85SCA FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa that rises to 219.8 N push and 184.7 N pull. Theoretical peak is 32 kgf at 1.0 MPa. Pressure range 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s, fluid air filtered to 40 um, temperature -20 to +70 C. Ports are 1/8", rod thread M8x1.25, rod 8 mm.
It lets the cylinder pivot on a pin, so linkages, levers and clamp arms can swing through their arc without a separate knuckle bracket. If the mount turns out fixed instead, the same barrel is available with U flat-end or CM round-end covers, and FA flange, LB foot or SDB pivot brackets bolt on.
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