Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø16mm bore and 300mm stroke, M5×0.8 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.
- BoreØ16 mm
- Stroke300 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM6×1.0
- 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 MACJ16X300-20S
Double-acting on both faces and cushioned by air at both ends, this bore 16 mini cylinder turns 0.15-1.0 MPa (22-145 psi) supply into 100.5 N of push and 86.4 N of pull. The -20 suffix means the extend stroke can be shortened anywhere inside a 20 mm window once the cylinder is mounted.
Speed runs from 30 to 800 mm/s, and the twin cushions let you push toward the faster end without hammering the covers. Because the stainless round barrel shrugs off mild corrosion better than painted-steel minis, it suits food-adjacent and outdoor stations, while the built-in magnet feeds position signals to CMSG / DMSG / EMSG switches with no special-order piston. At full 0.5 MPa thrust the rod could carry about 10 kg vertically, so halving for margin gives roughly 5 kg of real lifting duty.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 300 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | 121 N |
| Max (@1.0 MPa) | 21 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 MACJ16X300-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 16 | Bore size in mm. |
| ×300 | 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 MACJ16X300-20S Is Used
Sorter flapper
Kicking small cartons off a parcel sorter at rates where the 30-800 mm/s speed range and 20 mm stroke trim keep diverge timing tight.
Test-rig actuation
Pressing a probe onto connector pins during inline electrical tests, with the magnet feeding stroke-done signals to the PLC.
Sheet clamp jig
Light clamping of aluminium blanks during laser marking, holding parts flat with 86.4 N of pull force on the retract side.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-20S the Right Cylinder?
Sizing check: at 0.5 MPa this bore gives 100.5 N of push and 86.4 N of pull; the next MA bore up, 20 mm, delivers 157.0 N if your load needs more headroom. The 20 mm trim window shortens extend travel only and does not hold position - on air loss the piston is free to move, so use a separate clamp if the load must stay put.
FA flange and LB foot mountings cover fixed frames, while I and Y knuckles suit pivoting links. The standard magnet pairs with CMSG / DMSG / EMSG switches, and because the 300 mm stroke runs on a slender 6 mm rod, carry side forces on an external guide rather than on the rod itself.
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 MACJ16X300-20S FAQ
Extend thrust is 100.5 N and retract pull 86.4 N at 0.5 MPa; at 0.7 MPa expect 140.7 N out and 120.9 N back, with a 20.5 kgf theoretical maximum at 1.0 MPa. It runs on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um through the M5x0.8 port.
The -20 suffix sets a 20 mm window: an external stop screw shortens the extend stroke anywhere inside that range, on the machine, without parts changes. It limits travel only - it will not hold a load against gravity if air pressure is lost - while the variable air cushion at both ends softens the stops.
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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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