72" (1,800mm) x 1" (25.4mm) Blohm & Voss (2 Step) API Spiral Pipe Mill

(Capable of 130" Diameter) with Two Off-Line Welding System

Manufacturer: Blohm & Voss
Year:1982
Diameter 24" to 72" (original 16" to 130") If cage forming is removed,

diameter capacity returns to original 20" to 130"
Wall 0.250" to 1.000"
Grade up to X80 API 5L
Pipe Length 12.2 to 24.4 m
Main Driver motor 75 KW (2014) with speed control through inverter.
n1 = 1786 rpm; n1 / n2 = 2014.65, roll diameter 750 mm

Rrefurbished with state of the art German technology - last upgrade in 2015
88,000# Coil Weight
Tandem Fly Welding System
Flux Heating and Handling System
Automatic Welding Gap Control
Laser Controlled Strip Edge Tracking System
High Efficiency Plasma Cutting
2012 German Astral Main Drive
(2) German PWS Strip Edge Milling Machines with 600mm diameter 75 kW heads
(6) Pairs of Milling Heads - 2015
1500 kVA 13200/440 V Substation Transformer
Shuttlelift Coil Handling Gantry Crane
Cooling Tower

Recent Upgrades:

Upgrade of welding equipment to GMAW tack welding
Uhrhan & Schwill, Z5 control, 4 x DC1000 capacity (2017)
Upgrade of fly welding of coils(2011)
Upgrade 2 edge milling units (4 heads in total)
1 unit PWS, 600 mm diameter head, 110 KW per head (2006)
1 unit PRD/Cagil 600 mm diameter head, 79 KW per head (2012)
Change to cage forming (instead of inside support) PRD (2016)
Upgrade to add mid forming roll, PRD (2015)

(2) Off Line Welding Lines
Uhrhan & Schwill 2017
Complete Automatic Welding System for Spiral Pipe, with Automatic Welding

Carriages
Digital Welding System Z5
Diameter 24" to 72"
Maximum Pipe Weight: 1 Mton / m
Thickness 0.250" to 1.000"
Pipe Grade up to X80
Pipe Length 12.2 to 25 m
Welding Equipment / Control (Lincoln Electric / U&S)
2 arc external welding head (2 x DC1000 + AC1500)
3 arc internal welding head (2 x DC1000 + AC1500 + AC1500)
Steitz Flux heating and recovery system (internal and external)

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