Industry News

30/09/2026
Custom Plate Rolling Machine Specs for OEM Manufacturing: A Complete Guide
A pressure vessel fabricator tenders a 4.2 m inside diameter shell in 38 mm ASTM A516 Grade 70 plate and receives four quotations that all read "40 mm x 3200 mm". Two of those machines cannot pre-bend both plate ends in one pass. One needs eleven pas...
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29/09/2026
3-Roll Plate Rolling Machine: Key Rolling and Bending Performance Requirements
Rolling a 25 mm S355JR plate into a 1,600 mm diameter shell is where most three-roll specifications stop being simple. The quotation names a rated thickness and a rated width, but the finished shell still has to come out round within 1 percent of its...
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28/09/2026
CNC 4-Roller Plate Rolling Machine Technology Explained in Full | Hengdeli
Plate Rolling Technology | HengdeliEvery shell fabricator hits the same bottleneck: pre-bending both edges of a thick plate without losing alignment or adding crane time. A CNC 4-roller plate rolling machine removes that bottleneck in a single loadin...
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24/09/2026
LSAW Pipe Mill Production Line: Key Forming, Welding and Inspection Factors
LSAW (Longitudinal Submerged Arc Welded) pipes carry crude oil, natural gas and water over thousands of kilometers, and every meter of that transport begins as a flat steel plate entering a pipe mill. When a fabricator invests in an LSAW pipe mill pr...
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23/09/2026
Wind Tower Plate Rolling: Key Factors Affecting Section Roundness and Quality Control
A single 80-meter wind tower section can vary in diameter by more than 10 millimeters at the weld seam if the plate rolling process does not control for roll deflection, material springback, and machine alignment. Section roundness—the geometric tole...
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21/09/2026
3-Roll Plate Rolling Machine Accuracy: Key Factors Affecting Plate Bending
On a typical 3-roll plate rolling machine, a 40 mm mild steel plate bent to a 2,500 mm inside radius can drift by 6 mm over a week if roll parallel tolerance degrades by only 0.15 mm. In pressure vessel and wind tower fabrication, that drift becomes ...
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18/09/2026
Plate Forming Equipment Procurement: Key RFQ Parameters Buyers Must Specify
A pressure-vessel fabricator sent a plate rolling machine RFQ to three suppliers with only "30 mm x 3000 mm plate bending machine" and a target price. The returned quotations referenced different roll configurations, different pre-bending claims, and...
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16/09/2026
Main Components of a 4-Roller Plate Rolling Machine: Complete Buyer's Guide
Suppose you are evaluating a 4-roller plate rolling machine for pressure vessel shells. The first thing that separates a machine that holds a 2 mm roundness over a 3 m seam from one that produces a new shape on every pass is not the color of the pain...
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14/09/2026
How to Maintain a 4-Roller Plate Rolling Machine: Daily Checks to Annual Overhaul
At a pressure-vessel shop in the American Midwest, a slow drip under the bottom cylinder of a 4-roller plate rolling machine went unnoticed for three weeks. The hydraulic pump ran hot, the operator kept topping up the reservoir, and the machine kept ...
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11/09/2026
LSAW Pipe Production Line: Key Equipment Configuration and Process Control
When a pipe producer starts planning an LSAW pipe production line, the first question is never about a single machine. It is about how the equipment configuration will hold roundness, weld integrity, and dimensional tolerance across every pipe length...
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09/09/2026
3-Roll Plate Rolling Machine: Key Factors Affecting Bending Accuracy | Hengdeli
On a 3-roll plate rolling machine, a 3000 mm wide, 20 mm thick mild steel plate can be rolled to a 250 mm inside radius with a bow deviation under 2 mm only when roll axis parallelism holds within 0.1 mm across the full working width. That accuracy i...
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07/09/2026
Understanding How Roller Design Affects Plate Rolling Quality and Accuracy
A pressure vessel fabricator loads a 40 mm thick, 3000 mm wide Q345R plate into a three-roll machine rated for 60 mm. The first pass leaves a flat zone along one edge; the second produces a barrel-shaped middle. The press has enough tonnage and the o...
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