Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X80-10S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X80-10S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø40mm bore and 80mm 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.
- BoreØ40 mm
- Stroke80 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM12×1.25
- 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 MACJ40X80-10S
AirTAC built the MACJ40X80-10S as a double-acting round-body mini cylinder with a twist: a stop screw trims the extend stroke anywhere within a 10 mm window, while a variable air cushion softens both ends of travel. The 40 mm bore pushes 628 N and pulls 528 N at 0.5 MPa, running on 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
The stainless barrel and 16 mm hard-chrome-plated rod shrug off washdown and damp plant air, an edge painted minis cannot match, and the riveted aluminium covers keep the seal tight for life. The magnet comes built in, so CMSG, DMSG and EMSG switches drop straight on. For sizing, count on roughly 377 N of usable push at 0.5 MPa, six tenths of the rating, which leaves generous headroom for a 250 N clamp load.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X80-10S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X80-10S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MACJ40X80-10S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 MACJ40X80-10S Is Used
Carton flap tucker on a case packer
Trim the 10 mm window so the pusher folds each flap without crushing the board; about 377 N of usable push at 0.5 MPa handles the job with margin.
Reagent capper on a lab filler
Short, repeatable cap presses at up to 800 mm/s, with the stainless barrel standing up to daily alcohol wipes in the filling booth.
Drill fixture clamp at a machine bench
Turn the stop screw to reset clamp depth whenever the jig changes, no cylinder swap or re-order needed.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X80-10S the Right Cylinder?
Bracket the choice before ordering: the 32 mm bore manages 402 N push at 0.5 MPa and the 50 mm bore reaches 981 N, so this 40 mm unit at 628 N sits in the middle ground between light feeding and heavier pressing. Mount with the FA flange or LB foot, add I or Y rod knuckles if the load pivots (the adjustable version omits the SDB and back-cover code). One caution: the stop screw sets extend length only; if air pressure drops the rod still drifts, so position holding depends on your valve logic.
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 MACJ40X80-10S FAQ
At 0.5 MPa it pushes 628 N and pulls 528 N; at 0.7 MPa those rise to 880 N push and 739 N pull. The theoretical maximum is 128 kgf at 1.0 MPa. Stroke is 80 mm with a 10 mm adjustable window, a 16 mm hard-chrome rod, and a 1/8" air port.
No. The magnet is built into every MACJ piston as standard, so CMSG, DMSG and EMSG switches clip onto the barrel and signal end of stroke or intermediate zones straight out of the box.
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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.
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Most inquiries answered within 7-8 hours.
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