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Expanding Head

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  • TSD

Expander heads

The operating principle of the expander heads is to pull a multi-faced wedge, the cone, by means of the drawbar into a set of circumferentially arranged expander jaws. The jaws move radially outward, expanding the pipe. This method assures that the pipe is forced outwardly in a uniform fashion regardless of any differences present in the pipe material. The final diametrical size of the expanding dies is determined by the penetration of the cone. The position control assembly controls the depth of penetration.

Applicable for full length pipe mechanical expander made in Fontijne-Grotnes B.V.; SMS Meer; IPROLAM SA


Expander head #400

Nominal pipe O.D.      16" (406.4mm)

Number of jaw/dies      10

Diametrical travel (max.)  38mm,approximately


Expander head #450

Nominal pipe O.D.       18" (457.2mm), to 22"  (558.8mm)

Number of jaw/dies      10

Diametrical travel (max.)  47mm, approximately

Expander head #600

Nominal pipe O.D.        24" (609.6mm), to 30"  (762mm)

Number of jaw/dies       12

Diametrical travel (max.)   56mm, approximately



Expander head #800

Nominal pipe O.D.        30" (762mm), to 44"  (1117.6mm)

Number of jaw/dies       12

Diametrical travel (max.)   62mm, approximately


Expander head #1000

Nominal pipe O.D.        46" (1168.4mm), to 60"  (1524mm)

Number of jaw/dies       12

Diametrical travel (max.)   62mm, approximately


Expander head tool sets

Tool sets are according to the range of pipes and include all the necessary dies, spacers, shims, etc. for the complete pipe expanding system, including pipe-handling automation.



Head handling fixtures

One fixture is required for each size head. This fixture is used to aid removal of an expander head form a horn. It also is an excellent storage fixture for the expander head. The head must be in the collapsed postion before this fixture can be placed under the head. After the fixture is palced under the head, the front nut and table are removed, and then the head is carefully removed by using the synchronized roller supports.

1. The Seller has passed ISO9001 quality system certification since 1997, and always execute strictly this quality
management system in our company and on our products.
All products before ex-works have been strictly tested and are in conformity with technical agreement and
2. Warranty is one year since the date of B/L, or final acceptance date of heavy duty machinery. Longer warranty
could be purchased by the user.
3. Commissioning: For heavy-duty machinery, the Seller sends technicians (electrical hydraulic & mechanical)
to guide the installation, testing and training the operators from 7 days to 45 days after the machine
reaches the factory of user. But the round-trip air tickets, local accommodation and allowance
(USD100/person·day) in the User's country will be burdened by the Buyer. The above charges do not be
included in the offer. This clauses will be shown in the contract.
3. For middle and small standard machinery, it is easy to operate according to operating manual. The User is
firstly suggested to carefully read operating manual, then start the machine. Any unclear issues, please feel
free to contact the Seller.
If the User insists on supplying the technical service at use's factory, please refer to No.2 clauses of after-sale-
4. All products of the Seller can be tracked by Ex-works number. Spare parts can be supplied same as the former,
which is helpful for customers' special designing requirements.
5. Consumable parts can be supplied free of charge to customer within one year warranty from B/L date, and the
long term technical consultant service is available.
6. Common failure could be solved by E-mail, Phone and long distance video diagnose. The User must supply full
failure description, clear pictures and videos, if possible.
Once the serious quality problem is appeared due to the Seller's manufacturing reason within one year since
B/L date or final acceptance date of heavy duty machinery. The Seller will send their technician to repair it .
7. After one year warranty, the Seller will provide free technical consultation and spare parts and technician
service at lowest cost.

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