Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-40S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-40S 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 MACJ16X300-40S
This 16 mm bore actuator pairs a long 300 mm travel with a 40 mm trim window on the extend stroke, so one cylinder can be tuned to several product pitches on the machine it serves. Air works both faces - 100.5 N out, 86.4 N back at 0.5 MPa - and a variable cushion eases the piston at each end of travel.
Operating range is 0.15-1.0 MPa (22-145 psi) with speeds of 30-800 mm/s. The stainless-steel barrel and hard-chrome rod handle splash and humidity, the magnet comes built in for CMSG / DMSG / EMSG switching, and the two-way piston seal also stores grease in service, cutting relubrication stops. For day-to-day sizing, treat about 60 N as the working thrust this bore will actually deliver.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-40S |
|---|---|
| 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 MACJ16X300-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 16 | Bore size in mm. |
| ×300 | Stroke length in mm. |
| -40 | 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 MACJ16X300-40S Is Used
Gate latch actuator
Driving a light safety gate on a packaging cell through its full 300 mm arc, cushioned at both ends for quiet latching.
Camera focus slide
Positioning an inspection camera along a 300 mm rail, with the 40 mm trim matching different product heights.
Textile thread cut
Swinging a cutter into moving yarn on a winding head, timed by a CMSG switch reading the standard magnet.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-40S the Right Cylinder?
At 0.5 MPa this bore develops 100.5 N forward and 86.4 N back; if the math says you need more, the 20 mm MA bore offers 157.0 N and the 25 mm bore 245.3 N. The 40 mm window gives the widest trim range of the small-window options, and the stop is a travel limit rather than a brake - a rod drifting under gravity is still possible without air.
Fix it with an FA flange or LB foot, pivot the tooling through an I or Y knuckle, and sense position with CMSG / DMSG / EMSG switches on the standard magnet. Ports are M5x0.8. A 300 mm stroke magnifies side load, so carry misalignment on external guideways instead of the 6 mm rod.
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 MACJ16X300-40S FAQ
At 0.5 MPa: 100.5 N extending, 86.4 N retracting. At 0.7 MPa: 140.7 N and 120.9 N. Maximum theoretical force is 20.5 kgf at 1.0 MPa. Pressure range is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi).
FA flange and LB foot mountings, plus I and Y rod knuckles for pivoting links. The built-in magnet is standard, so CMSG, DMSG and EMSG switches mount without ordering a special piston, and the 40 mm window trims the extend stroke on site.
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.
Related AirTAC MACJ Cylinders
Request a Quote for Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X300-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.