Large Diameter, Heavy Wall
Spools run big OD and thick wall; bending needs real force and a moving mandrel to keep the bore round.
Large-Diameter, Multi-Spec Spools For Marine & Industrial Piping
Telhoo bends large-diameter, heavy-wall pipe up to Φ219 mm and prepares weld-ready ends for the mixed-spec, small-batch runs typical of pipe spools.
Pipe spool fabrication produces pre-assembled pipe segments — straights, bends and fittings — for marine and industrial piping systems. Telhoo bends large-diameter, heavy-wall pipe up to Φ219 mm and prepares ends for welding, handling the mixed-spec, small-batch runs typical of spools.
Pipe spools are not high-volume identical parts. They demand force, flexibility and weld-ready quality.
Spools run big OD and thick wall; bending needs real force and a moving mandrel to keep the bore round.
Every spool drawing differs; programmable CNC beats fixed tooling for one-off geometries.
Spool ends need clean cuts, bevels and chamfers so field welding goes fast.
Carbon and stainless piping grades each need matched tooling and speed.
Flanges and branch connections must land within millimetres so spools bolt up on site without rework.
Material certificates, heat numbers and inspection reports travel with each spool for project sign-off.
Large-diameter spools suit our heavy CNC benders (115/130/168CNC) with hydraulic clamping and moving mandrel, which bend thick-wall pipe without collapsing the bore.
Chamfering machines prepare weld bevels and tube end forming shapes ends where required, so a spool leaves the line ready to weld up.
Large-diameter piping
Up to 20 mm on 219
Marine and industrial grades
Heavy-wall bending plus weld preparation, on programmable machines built for mixed batches.
Hydraulic clamping and force for thick-wall pipe.
Moving mandrel keeps large-diameter bores round.
Beveled, deburred ends ready for field welding.
Stored part files switch fast between spool specs.
Jiangsu Telhoo has manufactured pipe processing machines for over 35 years and exports to buyers in more than 65 countries. Marine and industrial fabricators choose Telhoo for heavy-wall bending, weld-ready ends and mixed-batch flexibility.
Years manufacturing pipe processing machinery
Modern production plant with in-house R&D
Countries served across five continents
Typical reply time on your quotation
How programmable bending and weld-ready ends keep mixed-batch spool work reliable.

A pipe spool — also called a pipe spool piece — is a pre-assembled run of straight pipe, bends and end fittings built off-site so the field crew only has to lift it into place and weld. The value is in accuracy and weld-ready ends: bends that hold the routing, and bevels that drop straight into a welding procedure. Telhoo bends large-diameter, heavy-wall pipe on hydraulic CNC benders with a moving mandrel that keeps the bore round even in thick wall.
Spool work is high-mix and low-volume — many one-off drawings rather than one part repeated — so a programmable machine that stores each geometry beats slow, fixed tooling — the key to efficient pipe spooling. After bending, chamfering machines cut weld bevels and tube end forming shapes ends where a design calls for it, so each spool leaves the line ready to fit up.
Send your spool isometrics and pipe schedule with material grade, and our engineers confirm bend feasibility, end preparation and a schedule for the package.
Send your spool isometrics and pipe schedule and we will confirm bending feasibility, end preparation and a quote.
Share your part drawing, tube size, material and quantity.
We confirm feasibility, tooling, layout and the right machine configuration.
You receive a machine and tooling quotation, usually within one working day.
A pipe spool is a pre-fabricated section of piping — straight pipe with bends, flanges and fittings already welded on — made in the shop so the site crew only has to lift each pipe spool piece into place and weld it. Telhoo bends and end-prepares the tube that goes into these spools.
Up to Φ219 × 20 mm thick-wall pipe on our large CNC and NC benders, with a moving mandrel to keep the bore round on heavy wall.
Yes. CNC benders store up to 2000 part files, so frequent spool geometry changes run without slow retooling — ideal for mixed, one-off piping spools.
Yes. Chamfering machines bevel and deburr pipe ends for welding, and tube end forming shapes ends where a spool design requires it.
Carbon steel and stainless steel in marine and industrial grades. Send the schedule and grade and we confirm tooling and bend feasibility.
We manufacture the bending, chamfering and end forming machines; for equipment see the product ranges. For spool parts, send your isometrics for a fabrication quote.
Share your pipe drawing, material and quantity, and our engineers reply with a tailored quote within 24 hours.