Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-75S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-75S 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 MACJ20X75-75S
When the whole 75 mm might need shrinking, order the window equal to the stroke: MACJ20X75-75S lets the extend length be set anywhere from a minimal trim to the full 75 mm. It is a double-acting 20 mm bore with two-way cushioning, rated 0.15-1.0 MPa (22-145 psi) and 30-800 mm/s, pushing 157 N and pulling 132 N at 0.5 MPa.
AirTAC builds the MA family as a rolled stainless tube with a 20 um hard-chrome carbon rod, so mild washdown and outdoor damp are non-events. Prototype builders like this size: about 94 N of honest push at 0.5 MPa, roughly 8 kg of vertical lift at a 2:1 margin, and a standard magnet ready for EMSG switches at every position tested.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-75S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-75S |
|---|---|
| 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 MACJ20X75-75S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -75 | 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 MACJ20X75-75S Is Used
Multi-variant weld fixture
One actuator serves three bracket sizes on a weld cell table; re-set the extend length within 75 mm when the changeover cart rolls in.
Prototype push-test rig
Bench rig for cycling latch prototypes; the cushions let engineers ramp cycle speed toward 800 mm/s without cover damage.
Sorter divert finger
Kicks a divert finger across a light parcel sorter; LB foot or FA flange mounting plus a CMSG switch hands the WMS a divert-confirmed signal.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X75-75S the Right Cylinder?
On the force ladder, 16 mm gives 100.5 N push at 0.5 MPa and 25 mm gives 245.3 N; pick this 20 mm / 157 N size when loads hover near 90 N. The full 75 mm window lets one spare cylinder cover several jig variants - trim it on the bench, lock the jam nut, done. Bear in mind the adjuster is a mechanical extend stop only; it never holds a suspended load if pressure drops. Guided tooling is wise at this stroke so the M8x1.25 rod thread sees tension rather than side bending.
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 MACJ20X75-75S FAQ
MACJ20X75-75S: 157 N push / 132 N pull at 0.5 MPa, 220 N push / 185 N pull at 0.7 MPa, 32 kgf theoretical peak at 1.0 MPa. Double-acting, 75 mm stroke adjustable across a 75 mm window, air 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), 1/8" ports, M8x1.25 male rod thread.
No. Every MA piston ships with the magnet built in, so CMSG / DMSG / EMSG reed or electronic switches clip to the stainless barrel at any trim position without ordering a special cylinder.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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