Low-Noise Tubular Steel Wire Rope Stranding Line with Frequency-Controlled Lay Pitch

Low-Noise Tubular Steel Wire Rope Stranding Line with Frequency-Controlled Lay Pitch

Specification
The High Speed Tubular Stranding Machine is designed for stranding steel wires, copper wires, aluminum wires, and various cable conductors. It is widely used in the production of steel wire ropes, power cables, control cables, communication cables, and special cables.
Featuring high rotational speed, stable operation, low vibration, and precise stranding performance, the machine ensures excellent product quality and high production efficiency. The robust tubular structure, advanced transmission system, and reliable electrical controls make it suitable for continuous industrial production.
The machine can be customized according to wire diameter, strand structure, reel size, and production requirements.

Main technical parameters

6 bobbins stranding cage

• Pay-off reel specification: PND630mm
• Max cage rotation speed: 700 rpm
• Main motor power: 55 kW (AC)
• Cradle tensioning method: Hysteresis tensioning; adjustable online
• Reel loading/unloading: Pneumatic release/clamping; dual-cylinder interlocking anti-reverse mechanism
• Wire break protection: Contact-based sensor
• Cage support method: Two sets of bearing housings (3+3 configuration)
• Bearing housing lubrication: Oil bath/circulating lubrication; high-temperature monitoring; automatic shutdown protection
• Cage threading: External threading; convenient lead-in
• Wire guide hole material: Tungsten carbide die
• Cage drive method: Rear drive; vertical installation
• Braking method: Pneumatic disc brake
• Wire break stop method: Contact-based trigger (bottom bar)
• Cradle reel handling: Pneumatic clamping/release; dual-cylinder interlocking anti-reverse; reel loading/unloading via user-supplied crane
• Cradle pay-off tension: Hysteresis tensioning; tension values ​​set via touchscreen and adjustable online
• Pay-off frame: Integrally welded structure; high machining precision; high mechanical strength; durable and deformation-resistant
• Cage support structure: Three-section (2+2+2) integral tube support; three sets of large bearings supporting the middle and exit ends; flanged connections
• Lubrication method: Independent oil pump with circulating oil; provides both lubrication and cooling functions
• High-temperature monitoring for large bearings; automatic shutdown with HMI notification
• Braking method: Flat pneumatic disc brake system; PLC-coordinated operation involving servo/VFD motor controllers, braking resistors, and pneumatic brakes to execute slow stops, fast stops, and emergency stops; ensures system synchronization
• Main unit features external wire routing; Ø17mm wire guide holes
• Safety guard: Axial sliding door structure; pneumatic opening/closing; built-in sound-absorbing panels; includes safety interlock (stops machine when door opens)
• Wire gathering plate: Assembly consisting of a 6-hole distribution plate and a pre-forming device

Electric control system

• Power supply: Three-phase, five-wire system; 380V (±10%), 50Hz.
• The machine utilizes a distributed motor drive system (employing servo-controlled variable-frequency motors). Each AC servo motor is regulated by a variable frequency drive (VFD). Overall system control is managed by a PLC combined with a touchscreen interface; the main unit starts after a time delay following an audible alarm.
• The machine is equipped with the following protection features:
• VFD fault alarm.
• Overload protection for the take-up/traverse mechanism and power supply protection.
• Low air pressure protection.
• Wire breakage protection.
• Equipped with a smart energy meter.
• Reserved Ethernet interface for data acquisition.
• The supplier is responsible for all internal wiring and cabling within the machine body and the electrical control cabinet. The customer is responsible for all wiring and cabling between machine units, between the machine and the electrical control cabinet, and between electrical control cabinets.

Operation direction: The right hand machine, that is, facing the device operation, the left pay-off, and the right take-up

 Color

• Equipment main body: RAL 6021 Pale Green (wrinkle finish)
• Rotating parts: RAL 1037 Sun Yellow
• Guard main body: RAL 6021 Pale Green (wrinkle finish)
• Sliding door panels: RAL 1037 Sun Yellow
• Guard interior: RAL 1013 Oyster White
• Control housing: RAL 7032 Pebble Grey