Duct Elbow Machine Function Guide


This machine is intended to process the plate metal circular pipe locking and conduit bend.

Particular washer adding and removal beneath gliders allows two type beads rolling out at the base of metal circular tube headpieces, later the two beads join on the opposite kit of rolls. This unit has the features of reliable framework, steady, effective and workable functioning. It performs with precise size and angles and solid air conduit in the aftermath of locking.

In terms of treatment capability the circular tube angle locking device may be of two samples XMWT-700 and XMWT-1000. These two operate with dual separate driving technique. Every single kit of rolls are regulated independently and the working process can be carried out by both operators meanwhile.

Major Mechanical Features

ModelPlate maximum densityTube caliberFunction rateEnergy consumptionHeftMeasurement  L*W*H*

XMWT-10001.0Ф 100-100081.5kw×24502230*900*1050

Device Framework 

Device Structure

It is made out of welded metal, possesses firm toughness and a work bar made out of chrome.

Transmitting system

It operates by two separate transmitting systems. Each one of them has two rolling units, a top quality V-shaped belt, a screw gear and transmitting gear.

Working unit

While shaping bead two rolls and a single stationing wheel operate. Bead joining is carried out by two rolls and four hand supporting rolls.

Functioning unit

The foot switch manages the roll rotating course and the hand circle feeds the glide.

Elbow Device Functioning


Choose the appropriate roll and liner in accordance with the plate density and tube caliber prior to functioning. Regulate the breadth between B roll and stationing work bar. Two sorts of bead forms are shaped on A and B rolls.

In general during bead shaping A is 4-8 mm. The breadth between A and B face b equals plate density plus 0.2 mm. The clearance b between A and b is set in accordance with clearance of 0.8 mm dense plate. A and B expansion may get modified through regulating the circular sockets set on the primary roll beneath A and B wheels. During bead formation insert a liner of 4 or 5 mm in case of 0.8 mm or more density plates beneath A and B wheels.

Functioning modes

Check the roll rotating course. A roll moves counterclockwise.

Put the work piece on the stationing bar, handle the 3-M8 bolt over the stationing bar, make the stationing wheel attach to the work piece to regulate the twist rotation. See in figure 4.

Figure 4

Slightly push the above supplying part of the work piece to let the work piece down ridge supply the stationing bar. Afterwards twist the hand wheel to let the A roll press the B one unless it is shaped.

While joining the circular conduit, inset one tip of circular pipe in the next pipe bead, then choose a few spots on the beveled contour of clutch to lock beads through a hammer. Place it in the next roll kit and adjust the hand wheel to make the roll press the joint. Later regulate the feeding expansion location and the two hand supporters. Promote the circular conduit by twisting hand wheel to maintain the conduit joint grade and make its rotation smooth.

In the aftermath of starting, adjust the handle wheel to gently press the C roll over the next one to press the joint.

Safety instructions

The worker should master the basics of operating the machine.

Prior to starting up note the gap of every single part, act a testing run to check the device condition. Make sure that the wheel rotating course is proper.

The working sections must be clean and lubricated.

Clean the stuff prior to rolling. Avoid cleaving iron materials to escape device failure.

The work piece density should correspond to the device requirements.

The gear case should always be loaded with sufficient amount of fuel and should be lubricated.

Make sure that the device grounding is properly done. Realize maintaining and adjusting settings by shutting down the device.


Every single gear should be lubricated with calcium oil. Avoid adding oil to the roll to escape the work piece slip.

Make sure the V shaped belt is properly tight, make necessary settings if required.


The device is advised to be set on an even cement ground.

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