Airtac MAC Stainless Steel Mini Air Cylinder MAC20X105SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X105SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 105mm 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
- Stroke105 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 MAC20X105SU
A 105 mm stroke on a 20 mm stainless barrel gives this AirTAC mini real reach for its size: 157 N of push at 0.5 MPa (22-145 psi), rising to 220 N at 0.7 MPa. The riveted round body pairs a stainless tube with a hard-chrome plated 8 mm rod, so mild washdown and outdoor damp do not eat it the way they eat painted mini cylinders. Double acting with a variable air cushion at each end, it runs 30-800 mm/s.
The magnet is built in as standard, so CMSG, DMSG or EMSG switches clip on without a special piston. The flat-end U back cover keeps fixed mounting simple; add an FA flange or LB foot when the frame needs it. 157 N at 0.5 MPa is roughly 16 kgf, so keeping a 2:1 margin this cylinder lifts about 8 kg vertically.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X105SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X105SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 105 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 MAC20X105SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×105 | 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 MAC20X105SU Is Used
Conveyor gate pusher
Swings a 5 kg slide gate on a bakery tray line across a 105 mm gap, cushioned so the stop does not rattle the frame.
Carton lane diverter
Nudges small cartons from a pick lane onto a reject belt; 157 N at 0.5 MPa moves them at 300 mm/s without jamming.
Lid lift on a mix vat
Raises the vented lid of an 8 kg dairy sampling vat between CIP cycles - the stainless barrel shrugs off the washdown.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X105SU the Right Cylinder?
Size check: a 16 mm bore delivers 100.5 N at 0.5 MPa and suits lighter pushes; a 25 mm bore gives 245.3 N when the load gets heavier. Over 105 mm of exposed stroke the 8 mm rod is more sensitive to side load, so guide the load on rails or add a Y knuckle instead of letting the rod carry bending. The U flat-end cover plus an SDB pivot bracket covers most frame fixings. Note the piston drifts if air is lost - there is no position hold without a rod lock or pilot check valve.
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 MAC20X105SU FAQ
At 0.5 MPa it pushes 157 N and pulls 132 N; at 0.7 MPa push rises to 220 N and pull to 185 N. Theoretical maximum is 32 kgf at 1.0 MPa. Stroke is 105 mm on a 20 mm bore with a 1/8" port and M8x1.25 rod thread.
Back both needle screws fully off before applying air, then close them gradually until end-of-stroke thump disappears. The variable cushion works at each end across the full 30-800 mm/s speed range.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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