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Home/Product Series/AirTAC Sourcing/Stopper Cylinders/TWQ
AirTAC sourcing reference•Stopper Cylinders
SERIESTWQ

AirTAC TWQ / TTQ Stopper Cylinders

AirTAC TWQ TTQ family products actual Chinese source
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AirTAC TWQ fixed-height double-acting and TTQ single-acting retract stopper cylinders. Select...

Official reference

Based on manufacturer documentation

Model support

For model confirmation

Parts lists

Code, photo, or BOM

Availability / lead time

By model and quantity

Sourcing route & inquiry details

AirTAC TWQ fixed-height double-acting and TTQ single-acting retract stopper cylinders. Select bore/stroke, round/flat/roller or damped lever head, magnet and optional lever self-lock. Send the label, mounting drawing, impact mass/speed, quantity and destination for quotation.

Know your model? Send it with the quantity for a quote. Not sure? Start with a photo, label or description. We help identify the model and clarify availability and lead time. Mixed parts lists are welcome too.

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AirTAC originalModel matchingChina-source alternative

Find your TWQ type

Choose a type; send a model or photo if unsure.

TWQ

Fixed-height double acting; all published head forms

TTQ

Single retract; spring extends on air loss

C / B / R

Round / flat / roller, bores 20–50

K / KF

Damped lever / damped lever with self-lock, bores32–50

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Send the model, quantity and destination. For multiple items, attach a parts list or BOM.

Match a TWQ / TTQ stopper cylinder

Drawings & dimensions

Installation Drawings & Technical Specifications

Compare installed dimensions
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AirTAC TWQ TTQ specifications actual Chinese sourceClick to open full drawing ↗

AirTAC TWQ TTQ specifications actual Chinese source

Helpful for Model Matching:

  • Complete TWQ/TTQ code and installed label
  • Action and behavior on air loss
  • Bore/stroke and own C/B/R/K head
  • Magnet/sensor and K self-lock
  • Fixed mounting holes, head height and port clearance
  • Impact mass/speed, side load and operating pressure
  • Quantity, destination and damper/sensor supply
  • Own head C/B/R/K dimensions and fixed mounting
  • TTQ spring-extend operation
  • Bore-specific port and standard stroke
  • Match mass/speed and side-load curves separately
  • ASJ1408 exact lever damper; sensor separately confirmed

Catalogue Technical Specifications

AirTAC reference data
Identity and actionTWQ fixed-height double acting; TTQ single-acting retract. TTQ air enters to retract and compress the spring; on air loss, spring returns the rod to the extended position. This is not a spring-retract cylinder.
Bore and strokeBores20/25/32mm: standard strokes10/15/20mm. Bores40/50mm:20/25/30mm. Stroke tolerance +1/0mm. Unlisted strokes need label/drawing confirmation, not automatic standard matching.
Stopper head and self-lockC round rod, B flat rod and R roller available20–50mm. K lever roller with adjustable hydraulic damper only32/40/50mm. F optional self-lock only on K; blank no self-lock. Lever self-lock prevents bounce-back after impact; it is not a safety or fail-safe claim.
Operating pressureTWQ double acting0.15–1.0MPa. TTQ Ø20:0.25–1.0MPa; other TTQ bores0.2–1.0MPa. Proof1.5MPa is not the operating limit. Confirm conveyor side load against pressure, not proof pressure.
Working conditionsFiltered air40μm or finer; −20 to70°C; no lubrication required; bumper cushioning. K has a separate adjustable hydraulic impact damper. Keep port, stroke and head clearances from the actual installation drawing.
Ports and thread codeØ20/25 actual port M5×0.8; Ø32/40/50 PT1/8. Only blank PT ordering field is published; no G/NPT code inferred. Actual M5 is metric despite the blank ordering field.
Magnet and sensorS magnet; blank no magnet. Body has sensor grooves on four sides; sensor selection referenced to catalogue409 is not transcribed here. A magnetic cylinder does not automatically include sensor model/cable or confirm control-system compatibility.
Load-curve scopeUse separate round/flat/roller and internally damped lever mass-versus-impact-speed curves: mass m in kg, speed V in m/min. Side-load chart uses W in N and P in MPa and applies to round/flat/roller forms. The charts do not publish one universal payload/energy rating or automatic machine approval.
Mounting and head envelopeFixed installation height, through-hole and two-end tapped mounting. Compare own C/B/R/K dimensions, table fixing holes and extended/retracted head height. Ø32/40 lever installation from below a plate follows remove-head/body-install/reassemble-head sequence; do not apply that specific procedure to every bore or head.
Damper replacementK Ø32/40/50 replacement code ASJ1408 is published. Source says this unit can operate under pressure and differs from ordinary oil-pressure dampers; do not substitute a generic damper solely by outer size. Confirm exact head/damper assembly, adjustment and replacement scope.
Common Model Codes & Configurations:Useful for an RFQ
TWQ50X20SKFTTQ20X10CTWQ32X15SRTTQ40X25SB

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Technical reference & selection notes

Ordering Codes, Fit Verification & Specifications

Specifications, installation dimensions, and ordering-code notes.

Ordering code matching

Match each code segment

Send a photo if the code is incomplete

Code format

[TWQ/TTQ][20/25/32/40/50]X[stroke][S/blank][C/B/R/K][F/blank]Standard head required; K/F and stroke are bore-dependent
TWQ50X20SKFTTQ20X10CTWQ32X15SRTTQ40X25SBTWQ32X20K
1Action2Bore / stroke3Magnet / head4Self-lock / thread
TWQ double; TTQ single retract/spring extend20/25/32 ×10/15/20;40/50 ×20/25/30mmS or blank;C/B/R;K only32/40/50F only K;blank thread field;actual M5×0.8 or PT1/8

Avoid a wrong match

  • TTQ is spring-extended, not spring-retracted.
  • K only32/40/50;F only K.
  • Do not apply lever mass/speed chart to C/B/R or side-load chart to K.
  • M5 ports are metric, not PT.
  • Magnet S does not confirm included sensor.
  • Code match does not establish conveyor load or machine fit.

Read the model code

If the label is incomplete, send the readable parts together with a photo.

TWQ50X20SKF

1Action

TWQ double; TTQ single retract/spring extend

2Bore / stroke

20/25/32 ×10/15/20;40/50 ×20/25/30mm

3Magnet / head

S or blank;C/B/R;K only32/40/50

4Self-lock / thread

F only K;blank thread field;actual M5×0.8 or PT1/8

About TWQ

AirTAC TWQ fixed-height double-acting and TTQ single-acting retract stopper cylinders. Select bore/stroke, round/flat/roller or damped lever head, magnet and optional lever self-lock. Send the label, mounting drawing, impact mass/speed, quantity and destination for quotation.

Matching Questions

Does a matching TWQ code confirm conveyor stopping capacity?

No. Send head type, moving mass, impact speed, side load, operating pressure and installed height/drawing. C/B/R and damped K use different source curves; self-lock and spring return have their own functions. Match the actual assembly before quotation.

TWQ

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Pneupart is a China-based pneumatic sourcing brand for distributors, factories, and MRO buyers. Send a model, label, drawing or BOM for technical confirmation and quotation. Specify whether original AirTAC sourcing or an alternative is required.

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