Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-10S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-10S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø20mm bore and 75mm 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
- Stroke75 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-10S
A 10 mm tuning band makes the MACJ20X75-10S useful where fixture tolerances shift between batches: the external stop screw shortens the extend stroke anywhere inside that window without swapping cylinders. Double-acting, with a variable cushion at each end to kill end-of-stroke shock.
AirTAC rolls the aluminium covers onto a stainless barrel and hard-chromes the 8 mm rod, a package that tolerates humid or lightly washed environments better than painted minis. Push force at 0.5 MPa is 157 N against 131.9 N on retract; treat about 94 N as the working number, which matches a vertical lift near 8 kg with a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-10S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-10S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 75 mm |
| Acting type | Double acting, adjustable stroke + 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 300 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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-10S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -10 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-10S Is Used
Bearing press-fit bench
Presses small bushings and bearings into housings on an electronics assembly bench; the 10 mm band lets technicians compensate for housing lot variation.
Vial filling stop
Stops glass vials at a filling station on a pharmaceutical line, where the stainless round body and hard-chrome rod shrug off frequent wipe-downs.
CNC jig indexing
Indexes a jig plate a few millimetres on a CNC drilling fixture, cushioned at both ends so delicate fixture plates are not hammered at stroke end.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-10S the Right Cylinder?
If 157 N at 0.5 MPa is more than the job needs, the 16 mm bore gives 100.5 N; if the load is heavier, the 25 mm MACJ delivers 245.3 N. Ports are 1/8 in on this bore, rod thread M8x1.25. The adjuster only shortens the extend stroke inside its 10 mm window and holds nothing when pressure is lost - fit a check or shut-off valve for load arrest. Mount it FA (flange) or LB (foot) and snap a CMSG / DMSG / EMSG sensor onto the built-in magnet.
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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-10S FAQ
At 0.5 MPa it pushes 157.0 N and pulls 131.9 N; at 0.7 MPa, 219.8 N and 184.7 N; theoretical maximum 32 kgf at 1.0 MPa. The 20 mm bore drives an 8 mm rod with M8x1.25 male thread and breathes through a 1/8 in port. Operating range is 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, and the extend stroke is trimmed inside a 10 mm window.
Yes - the barrel is stainless steel with aluminium covers rolled on, and the 8 mm rod is hard-chrome plated to about 20 um, so mild corrosion, condensation and splash are handled far better than by painted minis. Fluid must be air filtered to 40 um, and the standard built-in magnet accepts CMSG / DMSG / EMSG switches for position feedback.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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