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Shanghai Lejia CNC Machine Co., Ltd.
Shanghai Lejia CNC Machine Co., Ltd.
Main Products :Shearing Machine,Press Brake,Power Press,Rolling Machine,CNC Turret Punch Machine
Shanghai Lejia CNC Machine Co., Ltd.

Street Address :No. 1 Building, Lane 1040, Caoyang Road, Shanghai.

City :Shanghai

Province :Shanghai

Country/Region :China (Mainland)

Business Type :


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Home > Products > TDT90 pipe mechanical expander

TDT90 pipe mechanical expander

TDT90 pipe mechanical expander

Detailed Information:

Product Name:

TDT90 pipe mechanical expander



Product Category:

Main Manufacturing Machines For Construction Pipe

Place of origin:

in/from Shanghai

Detailed Product Description

Quick Details

  • Place of Origin: Shanghai, China (Mainland)
  • Brand Name: SLJS
  • Model Number: TDT90

Packaging & Delivery

Packaging Details: Appliable for shipment
Delivery Detail: 90days


1,expanding head consists of a multi-faced wedge
2,expansion ratio is 1~1.5% of diameter

Technical Parameters:




Machine type

Machine unit

Expanding type

Mechanical expander

Pipe diameter (mm)


Pipe length (mm)


Wall thickness (mm)

≤559, δ=23;≤711,δ=28.6
≤762, δ=34;≤762,δ=40

Typical steel grade

X70 (API)

Expansion ratio

Range 0.8~1.5%
Optimize range 1~1.12%

Pipe accuracy
after expanding

Diameter tolerance (mm)


Out-of-roundness (mm)

±≤0.25 D%

Straightness (mm)


Production efficiency (pcs/h)

8~10 (average)

Total power of motor (KW)


Overall dimensions(L×W×H) (mm)


Weight (kg)




The machine is one of main machines for LSAW mill, which serves to mechanically expand LSAW pipes step by step with expanding head in order to ensure accurate roundness, straightness and dimensional accuracy of the pipes in accordance with the technical requirements, and relief the residual stresses.


The machine consists of power cylinder, horn drawbar, expander-head, horn support and carrying pipe carriage. The expanding head consists of a multi-faced wedge, addressed as cone, drawn by means of a draw bar into a set of circumferentially arranged expander jaws.


They are forced against the inside wall of the pipe which expands it to size and straighten it along the entire length. This method assures that the pipe is forced outwardly in a uniform fashion regardless of any differences present in the pipe material. The expansion ratio is 1~1.5% of diameter.

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