Straight steel wire fed into the rotary disc of a 3D wire bending machine
rod-bending

Wire Bending Machine | Long Crank Wire Parts

Watch a 3D wire bending machine form a long crank-shaped steel wire part in one cycle - rotary disc tooling, servo feed and clean multi-angle bends.

Key Specifications

Materials
Long thin steel wire rod

Key Features

  • Forms long crank wires with several bends in one cycle
  • Rotary forming disc wraps the wire for clean angles
  • Servo feed sets each bend position precisely
  • Straightening block keeps the incoming wire true
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How Is a Long Crank Wire Bent in a Single Machine Cycle?

Short answer: With a servo-fed 3D wire bending machine. This factory test video shows a long thin steel wire passing through the straightening block and being wrapped around the rotary forming disc, producing several clean crank bends without ever re-gripping the part.

What the Video Demonstrates

StageEquipmentResult
FeedStraightening block and guideTrue wire presented to the disc
ClampSliding clamp at the disc edgeWire held firm for each bend
FormRotary forming discCrank bends wrapped in sequence
TestFull cycle run on the floorLong multi-bend part completed

Key Applications

  • Crank and zigzag wires for mechanisms and frames
  • Racks, supports and handles formed from long rod
  • Parts too long for press brakes to reposition easily
  • Factories validating machine setup before handover

Rotary Disc Forming vs. Press Bending Long Wire

CriterionPress bendingRotary disc forming
Long partsRepeated re-grippingFed through in one run
Bend sequenceManual indexingServo-programmed
Marking riskPress contact marksWire wraps the disc
Setup proofSample by sampleFull cycle test as shown

FAQ

Can this machine bend long wire without cutting it first? Yes - the wire feeds continuously through the straightener and disc, so long crank parts are completed in one run.

How many bends can a single cycle produce? The video shows a multi-bend crank part; the servo stations step through as many bends as the program defines.

Is the machine ready for production immediately after adjustment? That is exactly what the test demonstrates - once setup is confirmed, the operator can run the part on the standard cycle.

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