Airtac MAC Stainless Steel Mini Air Cylinder MAC20X35SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X35SCM is a genuine double acting + cushion 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 variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ20 mm
- Stroke35 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 MAC20X35SCM
With 157 N of thrust at 0.5 MPa packed into a 20 mm bore, MAC20X35SCM is a double-acting mini cylinder whose variable air cushion absorbs end-of-stroke shock from both directions across a 35 mm stroke.
The CM round-end back cover accepts a plain pin or mounting stud, which keeps pivoting fixtures simple. Because the magnet ships as standard, CMSG, DMSG or EMSG switches clip on without ordering a magnetized piston. The full 157 N of push equals about 16 kg of vertical lift; hold back to roughly 8 kg and you keep a 2:1 margin on the rod and seals. The riveted stainless barrel also shrugs off mild corrosion in humid plants.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X35SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X35SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 35 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 MAC20X35SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 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.
Where the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X35SCM Is Used
Stopper pin on an assembly indexer
Raises a stopper under pallets on an indexed conveyor; 157 N holds light pallets while the cushion keeps the pin from slamming over its 35 mm lift.
Autosampler tray elevator
Lifts sample trays of up to about 8 kg in a laboratory autosampler, with DMSG switch feedback from the standard built-in magnet.
Lane diverter blade
Kicks small totes between conveyor lanes; the round-end CM cover accepts the linkage pin directly.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X35SCM the Right Cylinder?
Size check: a 16 mm bore manages 100.5 N at 0.5 MPa while a 25 mm bore reaches 245.3 N, so bore 20 with its 157 N push and 132 N pull sits mid-range for clamp-and-release work. Run it anywhere from 30-800 mm/s and fine-tune the cushion needles until the 35 mm stroke lands quietly.
Do not expect the piston to stay put if supply air drops - a standard MAC has no lock, so add a rod lock or pilot check valve where a position must be held. The CM round end plus optional FA flange, LB foot or SDB pivot bracket covers most frame layouts.
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 MAC20X35SCM FAQ
Push at 0.5 MPa is 157 N and pull is 132 N; at 0.7 MPa push climbs to 220 N and pull to 185 N, with a 32 kgf theoretical ceiling at 1.0 MPa. Air ports are 1/8 in, rod thread M8x1.25, rod diameter 8 mm, and pressure may run 0.15-1.0 MPa (22-145 psi).
No - every MAC cylinder carries a built-in piston magnet as standard equipment, so CMSG, DMSG and EMSG switches mount straight onto the 20 mm barrel. Adjust the variable air cushion at both ends by opening the needle screws on commissioning, then trim them in for a quiet 35 mm stroke.
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