Roll Forming Systems for Threads: What’s Really Working on the Shop Floor

When people ask me what’s changed lately in Roll Forming Systems, I usually point them to a very specific niche: threading on pipes and bars. The “Threading roll forming machine in details” from YingYee (origin: Room B1106, Zhongliang Plaza, No.345 Youyi North Street, Xinhua District, Shijiazhuang, Hebei) is a tidy example of how a focused machine can outpace generalists. Three-axis for hollow pipes; two-axis for solid bars—simple split, clever execution.

Industry snapshot

Demand is drifting toward formed (not cut) threads for better grain flow and fatigue strength. Energy, scaffolding, solar racking, and transport hardware are all nudging suppliers to chase cycle time and repeatability. And honestly, buyers want less oil, fewer chips, and fewer headaches—formed threads deliver that.

Product specs (field notes)

Process flow, methods, and testing

• Materials: carbon steel bars (ASTM A29), mechanical tubing (ASTM A513), stainless (304/316) with lube tweaks.
• Method: cold rolling plastic deformation—retained grain flow boosts fatigue strength vs. cut threads.
• Flow: cut-to-length → chamfer → lubricate → 2- or 3-axis rolling → demag/clean → gauge check → packing.
• Testing: ring/plug gauges (DIN 13/ISO), profilometer checks, salt-spray on coated parts, hardness of dies, occasional tensile on samples (ISO 898-1 guidance).
• Service life: machine 8–12 years with PM; dies ≈ 80k–120k parts per regrind (depends a lot on material and lube).
• Industries: scaffolding couplers, HVAC hangers, solar racking studs, rebar couplers, oil & gas fittings (where wall allows roll-forming), automotive fasteners.

Why shops pick Roll Forming Systems for threads

No chips, faster cycle times, and stronger threads. Many customers say they also notice steadier dimensions after warmup—less fiddling with offsets. Energy savings tend to follow because material removal is minimal.

Vendor comparison (real-life factors)

Customization and options

Pitch modules, quick-change die holders, in-line chamfering, auto-lube, and barcode part tracking. If you’re mixing stainless and carbon, ask for separate coolant circuits—sounds fussy, but it cuts contamination headaches.

Field results (two quick cases)

• Gujarat, India: scaffolding pipes, 3-axis setup—scrap down 18%, uptime ≈96% after three months, threads passed GO/NO-GO at first shot most days.
• Silesia, Poland: solid M24 bars for solar anchor bolts—tooling ROI in 7 weeks; die regrind interval at ~95k parts on C45 steel.

Compliance and standards

Common references: ISO 9001 for QMS, CE per Machinery Directive 2006/42/EC, DIN 13 for metric thread tolerances, ISO 898-1 for fastener property checks, ASTM A513 for tubes. Not glamorous, but auditors love tidy paperwork—get those 3.1 certs (EN 10204) on incoming steel.

Bottom line? For threading where speed and strength matter, a dedicated Roll Forming Systems approach—especially 3-axis for pipes and 2-axis for bars—tends to pay back faster than folks expect.

Authoritative citations

1. ISO 9001:2015 – Quality management systems (International Organization for Standardization).
2. Machinery Directive 2006/42/EC – CE compliance requirements (European Commission).
3. DIN 13 – Metric screw threads; limits and fits (DIN Deutsches Institut für Normung).
4. ASTM A513 – Standard Specification for Electric-Resistance-Welded Carbon Steel Mechanical Tubing (ASTM International).