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Fully Automatic Integrated Production Line – Pointing → Drawing → Straightening in One Seamless Flow

  • Jul 9
  • 4 min read

FangRong’s automated cell combines a hydraulic pointing machine, cold drawbench, and precision straightener with centralized control and material transfer – eliminating manual handling, reducing labor costs, and ensuring consistent quality.


Why Automate the Entire Tube & Bar Production Line?

Traditional production separates pointing, drawing, and straightening into isolated operations – each requiring manual handling, separate operators, and intermediate storage. This fragmentation introduces:

  • Handling damage – scratches, dents, and surface defects from manual transfer.

  • Alignment errors – pointed ends misaligned with drawbench dies or straightener rolls.

  • Traceability gaps – separate logs for each process.

  • Labor inefficiency – multiple operators for what should be a continuous flow.

FangRong’s fully automatic three‑station line eliminates these problems by integrating:

  1. Hydraulic pointing machine – forms perfect, concentric tube/bar ends.

  2. Cold drawing machine – reduces diameter to final dimensions with ±0.02 mm accuracy.

  3. Precision straightener – corrects camber and twist to ≤0.2 mm/m.

All three stations are linked by automatic transfer systems – guided rollers, grippers, or conveyor belts – controlled by a single PLC with centralized recipe management.


How the Integrated Line Works – Step by Step

Station

Function

Automation Feature

1. Pointing (hydraulic or rotary)

Forms a smooth, concentric taper on the tube/bar end

Auto‑cycles after magazine infeed; transfers pointed piece directly to drawbench

2. Drawing (hydraulic or servo)

Pulls the tube/bar through a precision die – reduces diameter and improves surface finish

Closed‑loop force and position control; real‑time OD/wall measurement

3. Straightening (multi‑roll or profile)

Corrects camber, bow, and twist – achieves ≤0.2 mm/m straightness

In‑line laser feedback; auto roll adjustment; exit stacker

Material flow: Raw tubes/bars are loaded into a common magazine → pointed → transferred to drawbench → drawn → transferred to straightener → stacked – all without operator intervention.


Key Specifications – Integrated Three‑Station Line

Station

Parameter

Range

Pointer

Tube/bar OD

6 – 120 mm


Wall thickness

0.5 – 15 mm


Point concentricity

≤0.08 mm

Drawbench

Drawing force

10 – 100 tons (customizable)


Dimensional accuracy

±0.02 mm


Drawing speed

0 – 20 m/min

Straightener

Straightness achieved

≤0.10 – 0.20 mm/m


Straightening speed

10 – 60 m/min

Overall

Material length (max)

Up to 12 m (longer by request)


Operator requirement

1 (supervises the entire line)


Benefits of the Fully Automatic Three‑Station Line

Benefit

Before (Separate Machines)

After (Integrated Line)

Operators per shift

3 (one per machine)

1 (supervises the line)

Material handling steps

6 (load pointer, unload, load drawbench, unload, load straightener, unload)

0 (fully automated transfer)

Surface damage risk

High (manual handling)

Negligible (guided transfers)

Straightness rejection

2–4%

<0.5% (in‑line verification)

Traceability

Fragmented (separate logs)

Single batch record – from pointing to straightening

Cycle time per piece

2.5 min (typical)

1.1 min (55% faster)

Scrap reduction

4–6%

<1%


Core Technologies for Seamless Integration

  • Centralized PLC control – One touchscreen manages all three stations; recipe storage for hundreds of material/diameter combinations.

  • Servo‑driven transfer system – Precision grippers and guided rollers move material between stations – no misalignment, no contact damage.

  • Real‑time communication – Each station shares data with the others – drawbench speed adjusts based on straightener throughput, pointer cycles based on drawbench demand.

  • In‑process inspection – Laser sensors at key points verify dimensions and straightness – data logged for full traceability.

  • Automatic tooling change – Optional quick‑change systems on all three stations – reduce changeover time to under 5 minutes.


Common Configurations – Choose What Fits Your Production

Configuration

Best For

Key Advantage

Pointer → Drawbench → Straightener (inline)

Straight tubes/bars, high volume

Most common; compact footprint

Pointer → Drawbench → Straightener (L‑shaped layout)

Narrow factory floors

90° turn – saves space

Pointer → Drawbench (straightener optional)

Applications where straightness is less critical

Lower cost, still automated

Multi‑line drawbench with common pointer & straightener

Very high volume, small diameters

One pointer feeds multiple lines; one straightener handles combined output


Materials & Products Processed

Material

Typical Products

Why Integrated Line Helps

Stainless steel

Hydraulic tubing, medical cannulas, food processing tubes

Zero surface damage – guided transfers preserve passive layer

Carbon steel

Cylinder tubes, shafts, structural bars

High volume – automation maximizes throughput

Aluminum

EV cooling tubes, aerospace structural bars

Soft material – no handling scratches

Copper / brass

HVAC coils, busbars, valve stems

Consistent quality – traceability from pointing to straightening

Titanium

Aerospace tubing, medical implants

High value – scrap reduction is critical


Why Choose FangRong for an Integrated Three‑Station Line?

  • 26 years of experience – Thousands of drawbenches, pointers, and straighteners installed worldwide.

  • Proven integration – Multiple fully automated lines operating in automotive, aerospace, and medical plants.

  • Custom engineering – We design the layout, transfer system, and control logic to match your factory and product mix.

  • Single‑source accountability – One supplier for all three machines – no interface disputes.

  • Global service – Installation, training, remote diagnostics, spare parts.


Real‑World Example – Stainless Steel Tubing for Automotive Fuel Systems

A manufacturer of stainless steel fuel injection lines (304, 8 mm OD × 0.8 mm wall) operated three separate machines – pointer, drawbench, and straightener – with manual transfers. Production data:

Metric

Before (Separate)

After (Integrated Line)

Operators

3 per shift

1 per shift

Cycle time per tube

2.2 min

1.0 min

Surface scrap (scratches)

3.2%

0.4%

Straightness rejection

2.8%

0.3%

Overall OEE

62%

89%

Payback period: 14 months.

Conclusion – One Line, One Operator, One Quality Standard

The Pointing → Drawing → Straightening integrated line is not just about reducing labor – it is about eliminating the variability, damage, and delays that occur between processes. With centralized control, automatic transfers, and real‑time inspection, you move from “operating three machines” to “supervising one production cell.” One operator, one quality standard, one traceability log – from raw stock to finished, straightened tube or bar.


Contact FangRong to discuss your material, diameter range, and target output. We will provide a layout simulation, payback analysis, and process guarantee.


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 pointing drawing straightening line, integrated tube processing cell, hydraulic pointer drawbench straightener, automated cold drawing line, one‑operator production line, material transfer automation.

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