Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X175-20
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X175-20 is a genuine double-acting aluminum-barrel mini cylinder with a Ø40mm bore, a 175mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 155–175mm. Adjustable air cushion (both ends).
- BoreØ40 mm
- Stroke175 mm
- Adjustable155–175 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable 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 MBLCJ Adjustable Mini Cylinder MBLCJ40X175-20
The AirTAC MBLCJ40X175-20 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. The 20 mm rear stopper yields a usable travel window of 155-175 mm, providing exact end-position tuning for a 175 mm nominal stroke. Delivering 628 N of push force at 0.5 MPa, it suits mid-weight handling tasks. The riveted rolling-packed barrel and hard-chrome plated carbon-steel rod operate at speeds from 30-800 mm/s.
This model uses a G1/4 port and an Ø16 mm rod with an M12x1.25 thread. The adjustable air cushion allows screw-tuning of end-of-stroke deceleration to absorb kinetic energy from heavy loads, protecting the end covers. The rear stopper sets the travel end but does not hold the load. Because this specific SKU lacks the -S suffix, it has no built-in magnet and cannot support CMSG, DMSG, or EMSG position sensors.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X175-20 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X175-20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 175 mm |
| Adjustable window | 155–175 mm (trim 20 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 500 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X175-20
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 40 | Bore size in mm. |
| ×175 | Nominal stroke length in mm. |
| -20 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X175-20 Is Used
Stator Winding Press
Ideal for electric motor stator assembly, using the 155-175 mm stroke window to precisely set winding insertion depth while the air cushion prevents harsh impact on the copper wire.
Pallet Diverting Arm
Drives a mid-weight routing arm on a packaging conveyor, where the 628 N push force at 0.5 MPa moves loaded pallets and the tunable cushion halts the 175 mm stroke smoothly.
Mixing Valve Actuation
Actuates a diverter valve in a food processing line, using the 880 N push force at 0.7 MPa to shear viscous fluids while the adjustable end-position fine-tunes the flow opening.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X175-20 the Right Cylinder?
Choose this 40 mm bore when you need 628 N of push force at 0.5 MPa. If your load is lighter, the 32 mm bore offers 402 N; for heavier dynamics, stepping up to the 50 mm bore yields 981 N. Compared to the MBLJ series with its fixed rubber bumper, this MBLCJ model provides tunable air cushions for smoother stops. Against the MBLC type, the rear adjuster here lets you trim the stroke by up to 20 mm.
The rear stroke adjuster is a mechanical travel stop, not a lock; the air cushion only decelerates, so an external locking device is required to hold a load vertically. Mounting is limited to Basic, FA flange, or LB foot styles, with no SDB pivot or back-cover options available. The exact replacement match requires a 40 mm bore, 175 mm stroke, 20 mm adjust code, G1/4 port, PT thread, and no magnet. With a 175 mm stroke, the 16 mm rod is susceptible to side-loading; use an external guide to prevent rod bending.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X175-20 FAQ
At 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa. It uses a G1/4 port and a 16 mm rod.
This specific SKU lacks the -S suffix, meaning it has no built-in magnet and cannot accept CMSG, DMSG, or EMSG position sensors. The adjustable stroke is a rear mechanical stop that sets your travel end (155-175 mm), while the adjustable air cushion uses a screw to tune end-of-stroke deceleration. Neither feature locks or holds the load.
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 Adjustable-Stroke Cylinders
Request a Quote for Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X175-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.