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Fully Automatic Straightening Machine for Copper Tube Production – High Precision, High Output

  • Jun 8
  • 3 min read

FangRong’s new generation straightening system delivers consistent ≤0.15 mm/m straightness for copper tubes – ideal for HVAC, refrigeration, plumbing, and medical gas lines.


DONGGUAN, China – FangRong Precision Machinery has launched a fully automatic straightening machine specifically engineered for copper tube production. Designed to integrate seamlessly into high‑volume manufacturing lines, the system combines closed‑loop laser measurement, servo‑controlled straightening rolls, and automatic material handling – achieving superior straightness without operator intervention.


Why Copper Tube Straightening Needs Automation

Copper tubes, whether annealed (soft) or half‑hard, are prone to bending and waviness during drawing, annealing, and handling. Manual or semi‑automatic straightening introduces variability, slows down production, and risks surface damage. FangRong’s fully automatic solution eliminates these problems:

  • Laser pre‑measurement captures the incoming bend profile.

  • CNC‑controlled roll system applies calibrated pressure – gentle enough for soft copper, firm enough for hard drawn.

  • Post‑straightening verification ensures every tube meets ≤0.15 mm/m straightness.

  • Reject sorting automatically diverts out‑of‑spec tubes.


Key Technical Features

Feature

Benefit for Copper Tubes

Rotary or multi‑roll straightening head

Prevents ovalization – critical for thin‑wall copper tubes

Polyurethane / nylon roll coatings

No scratching, no galling – preserves bright surface finish

Automatic infeed magazine

Holds up to 500 kg of copper tubes; feeds one by one

Servo‑driven roll positioning

0.01 mm repeatability for precise pressure control

Touchscreen HMI with recipe storage

Recall parameters for different tube diameters (6–80 mm) and tempers

Data logging

Full traceability for ISO 9001 / ASTM B88 compliance


Typical Results

Copper Tube Type

Size

Incoming Straightness

Outgoing (Guaranteed)

Annealed (soft)

15 mm OD × 0.7 mm

5.0 mm/m

≤0.12 mm/m

Half‑hard

22 mm OD × 1.0 mm

3.5 mm/m

≤0.10 mm/m

Hard drawn

10 mm OD × 0.8 mm

2.8 mm/m

≤0.08 mm/m


Applications Across Copper Tube Industries

  • HVAC & Refrigeration – Condenser and evaporator coils need perfectly straight tubes for automated fin insertion.

  • Plumbing – Straight lengths for water supply lines, gas distribution.

  • Medical gas systems – Hospital piping requires absolute straightness for reliable brazing.

  • Heat exchangers – Uniform tube alignment maximizes thermal transfer.


Integration into Copper Tube Production Lines

The fully automatic straightener is designed to work directly after:

  • Annealing furnaces (inline or batch)

  • Cold drawing machines

  • Cut‑to‑length saws (pre‑straightening or post‑cutting)

Optional upstream/downstream automation includes:

  • Automatic uncoiling & feeding (for tube from coils)

  • Cut‑to‑length & chamfering stations

  • Automatic bundling & packaging


Real‑World Productivity Gains

A manufacturer of copper tubes for HVAC coils installed the FangRong fully automatic straightener and reported:

  • Throughput increase – 2,500 tubes per shift (up from 1,200 with manual straightening)

  • Scrap reduction – Straightness‑related rejects dropped from 4.2% to 0.5%

  • Labor savings – One operator now runs both the straightener and the cutting line


Why FangRong for Copper Tube Straightening?

  • 26 years of experience in non‑ferrous straightening equipment.

  • Surface‑protection expertise – Polyurethane and nylon rolls eliminate marking on soft copper.

  • Proven automation – Thousands of automatic straighteners operating worldwide.

  • Global support – Installation, training, remote diagnostics.


Conclusion

For copper tube manufacturers seeking higher output, consistent quality, and lower labor costs, the fully automatic straightening machine from FangRong delivers ≤0.15 mm/m straightness – hands‑free, shift after shift. Whether you produce soft annealed tubing for air conditioners or hard drawn pipe for water systems, this machine ensures every straight length meets specification.

Contact FangRong to discuss your copper tube dimensions and production volume.


Know More About Us FangRong Metallurgical Equipment Manufacturer in China since 1998. Professional in Metal Straightening machine, Cold Drawing machine, Push Pointer Drawing Machine, Automatic Three Lines Drawing Machine, Thread rolling machine, Tube-end shrinking machine, Pointing Machine, Core pipe machine, Polishing Machine etc.


Follow US:

Email: frsale@dgfangrong.com frmachine001@dgfangrong.com

Whatsapp/Skype/Wechat:+8618928290716 +8613537360900

Web: https://www.fangrong-machines.com        https://www.dgfangrong.com


Keywords: Fully automatic straightening machine, copper tube straightener, automatic copper pipe straightening, HVAC tube straightening, ≤0.15mm/m straightness, copper tubing production.

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