Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X15-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X15-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø32mm bore and 15mm 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.
- BoreØ32 mm
- Stroke15 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- 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 MACJ32X15-20S
Twin cushions, short throw, honest force. The MACJ32X15-20S pairs a 15 mm extend stroke with a 20 mm adjustment window, so the stop screw can set the extend position from a few millimetres out to the full stroke - and never beyond the ordered 15 mm. Underneath sits the standard MA layout: double-acting power, a variable cushion at both heads, 402 N of push at 0.5 MPa and a wide 0.15-1.0 MPa (22-145 psi) supply window at 30-800 mm/s.
Because the window exceeds the stroke, commissioning is forgiving: one cylinder covers several nest depths on mixed-part lines. The stainless barrel and chrome-plated rod laugh at washdown, and 60 percent loading leaves about 241 N of dependable push - call it a 20 kg vertical lift at half rating - well below the 82 kgf theoretical ceiling. Position feedback comes free: the magnet for CMSG, DMSG and EMSG switches ships inside every piston.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X15-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X15-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 15 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MACJ32X15-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| -20 | 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 MACJ32X15-20S Is Used
Reject pusher after a checkweigher
Sweeping underweight packs off the belt; the wide window absorbs pack-height changes between recipes without a cylinder swap.
Index pin on a rotary dial table
Engaging each dial station against a hardened stop; dual cushions make the short stab silent even at top speed.
Ejector on a bench-top wire bender
Kicking bent terminals clear of the forming die; 402 N at 0.5 MPa overcomes springback without deforming the part.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ32X15-20S the Right Cylinder?
Force neighbours: a 25 mm bore yields 245 N push at 0.5 MPa for lighter nests; a 40 mm bore lifts that to 628 N when rejection force matters. Note the adjustment is a mechanical stop for the extend direction - if the air supply fails the rod is not held fast, so add an external lock or spring for safety-critical positions. Choose FA flange or LB foot mounting, I or Y knuckles on pivoting rods, and 1/8" fittings on the port. For a 15 mm stroke side load is rarely an issue, but ejecting off-axis parts still warrants a guided tool.
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 MACJ32X15-20S FAQ
Extend force is 402 N and retract 346 N at 0.5 MPa, rising to 563 N and 484 N at 0.7 MPa, with a theoretical 82 kgf maximum at 1.0 MPa. Pressure runs 0.15-1.0 MPa (22-145 psi) and speed 30-800 mm/s.
The barrel is stainless steel rolled into the aluminium covers, leaving no coating that caustic foam can lift, and the 12 mm rod carries a 20 um hard-chrome plate that shrugs off rinse water. Paired with the standard piston magnet and CMSG, DMSG or EMSG switches, one cylinder handles both actuation and position sensing in a splash zone.
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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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