Grab Bucket & Bulk Handling Crane Heavy-Duty Drum Reeling Cable (0.6/1–6/10 kV)
Extreme-duty 0.6/1 kV, 3.6/6 kV and 6/10 kV drum reeling cables engineered for electro-hydraulic and four-rope motor grab buckets, bulk cargo ship unloaders, waste-to-energy (WtE) refuse incineration pit cranes, scrap-metal orange-peel grabs and dredging grab cranes. Built to DIN VDE 0250-814 and DIN VDE 0250-813 with Class 5/6 tinned copper conductors, +90 °C EPR insulation, a high-breaking-load central aramid/steel-composite core, vulcanized inner sheath, tight-mesh anti-torsion aramid braid and a cut-, oil- and acid-resistant 5GM5 rubber or 11YM1 PUR outer jacket.
Motorized electro-hydraulic clamshell grabs, orange-peel scrap grapples and waste-to-energy (WtE) refuse pit grabs represent one of the most destructive reeling environments in material handling: the cable hangs vertically alongside the hoist ropes, plunges repeatedly into jagged coal, clinker, scrap steel or corrosive municipal waste, and undergoes constant snatch tension and slack-rope shock as the grab opens and closes.
TEBAOFLEX engineers dedicated Grab Bucket Drum Reeling Cables across 0.6/1 kV (for on-board grab hydraulic pump motors and control circuits) and 3.6/6–6/10 kV (for high-capacity bulk unloader gantry drums) in accordance with DIN VDE 0250-814 and DIN VDE 0250-813. To prevent conductor breakage during vertical grab free-fall and hoist acceleration, the cores are laid in a short torsion-free pitch around a high-breaking-load central aramid rope (or polymer-coated steel/aramid core) rated for dynamic working tensions up to 30–35 N/mm².
A pressure-vulcanized 5GM3 inner elastomer sheath and a bidirectional aramid anti-torsion braid lock the cable cross-section against birdcaging and corkscrewing on counterweight, torque-motor or spring-operated grab reels. Customers can specify either a heavy-wall 5GM5 polychloroprene rubber outer sheath for coal, cement clinker and port grab service, or a cut- and leachate-resistant 11YM1 polyurethane (PUR) outer sheath for waste-to-energy incineration pit cranes.
Share your grab motor kW/voltage, control core count, vertical hoist drop height, reel drive type and bulk material with your enquiry. TEBAOFLEX manufactures custom grab cable lengths from a 50 m minimum order quantity with a standard lead time of 7–45 working days.
Explore the port and festoon cable range for related configurations.
For related heavy-duty magnet crane cables and high-voltage bulk stockyard reeling constructions, compare: Type W Magnet Crane Cable 2000V (for 2000 V ICEA/NEMA Type W thermoset rubber cables serving scrap-yard magnet reels); Stacker-Reclaimer & Bucket-Wheel Excavator Drum Reeling Cable (0.6/1–35 kV) (for long-travel stacker-reclaimer and bucket-wheel excavator drums up to 35 kV). Verify grab cycle frequency, sheave diameter, and continuous tensile load before ordering.
Construction
The representative construction illustrates 0.6/1 kV 4G35 + 4×2.5 mm² Heavy-Duty Grab Bucket Vertical Drum Reeling Cable: four Class 5 extra-flexible tinned-copper power/earth cores (35 mm²) and four insulated control/monitoring cores (2.5 mm²) with +90 °C 3GI3 EPR insulation, cabled in a short pitch around a heavy central aramid load-bearing rope, encased in a thick vulcanized grey 5GM3 inner sheath, double-helical aramid anti-torsion braid and an extra-thick black 5GM5 polychloroprene (or 11YM1 PUR) outer sheath.
| Component | Material and construction |
|---|---|
| Conductors | Extra-flexible Class 5 or Class 6 rope-lay stranded tinned copper conductors per DIN EN 60228 / VDE 0295 (4 mm² to 150 mm² power; 1.5 mm² to 4 mm² auxiliary control). |
| Insulation | 0.6/1 kV: +90 °C high-modulus 3GI3 EPR elastomer. 3.6/6–6/10 kV: triple-extruded inner semiconductive layer, +90 °C EPR medium-voltage dielectric and outer semiconductive screen. |
| Central load-bearing core | High-tenacity aramid fibre rope (or insulated flexible steel/aramid composite core) positioned on the neutral axis to absorb vertical grab suspension weight and snatch-load peaks. |
| Shock-absorbing inner sheath | Thick pressure-extruded 5GM3 elastomeric inner sheath cushioning the cores against lateral impact from grab chains and bulk cargo. |
| Anti-torsion aramid braid | Tightly woven bidirectional aramid fibre braid vulcanized between the inner and outer sheaths, rated for dynamic tensile loads up to 30–35 N/mm². |
| Cut- & chemical-resistant outer jacket | Extra-heavy black 5GM5 polychloroprene rubber (for coal, ore, clinker and port grabs) or 11YM1 polyurethane (for waste-to-energy refuse pits, slag and sharp scrap). |
Applications
Choose 0.6/1 kV central-aramid cables for vertical motor-grab buckets and waste-pit overhead cranes, or 3.6/6–6/10 kV R-(N)TSCGEWÖU for the main gantry drum of rail-mounted grab ship unloaders.
- Electro-hydraulic clamshell grab buckets and orange-peel grapples on port bulk cranes, scrap-yard cranes and dredging vessels.
- Waste-to-energy (WtE) municipal solid waste incineration pit cranes and biomass handling grab cranes exposed to organic acids, leachate and continuous 24/7 vertical reeling.
- Cement plant clinker hall grab cranes, steelworks slag pit grab cranes and fertilizer/potash bulk storage bridge cranes.
- Rail-mounted grab ship unloaders (GSU) and floating transshipment grab cranes operating at 0.6/1 kV, 3.6/6 kV or 6/10 kV.
For coal-terminal ship unloader field deployments and 0.6/1 kV aramid-reinforced drum reeling options, see: Ship Unloader Reeling Cable for Duyen Hai 2 Power Plant, Vietnam (for a bulk-jetty ship unloader reeling cable reference in coal handling service); TROMMELFLEX KSM-S & (N)SHTOEU-SMK Spring & Motorized Drum Reeling Cable (0.6/1 kV) (for low-voltage spring and motorized drum reels with anti-twist aramid braiding). Confirm abrasive dust exposure, vertical drop length, and guide roller geometry during selection.
Specifications
| Parameter | Value |
|---|---|
| Rated voltage grades (U0/U) | 0.6/1 kV (vertical motor-grab & WtE crane reel); 3.6/6 kV & 6/10 kV (grab ship unloader main gantry reel) |
| Maximum continuous conductor temperature | +90 °C (+250 °C short-circuit, 5 s max.) |
| Ambient operating temperature | -35 °C to +80 °C (5GM5 rubber); -40 °C to +80 °C (11YM1 PUR waste-pit / cold-climate jacket) |
| Permissible dynamic tensile load | 30 to 35 N/mm² of power copper cross-section (supported by central aramid core + outer aramid braid) |
| Minimum dynamic bending radius | 10 × D (0.6/1 kV grab cables); 12 × D (3.6/6–6/10 kV main unloader drum cables) |
| Mechanical impact & chemical resistance | High tear and cut resistance; resistant to hydraulic oil (EN 60811-404), refuse pit leachate, coal dust and cement alkali |
| Quality & third-party conformity | ISO 9001:2015 cert. 244-24-QI-17425-R0-Q; third-party verification of conformity (ICR, cert. ICR/VC/HTT260331) against DIN VDE 0250-813/-814 |
| Commercial supply terms | Minimum order quantity 50 m; manufacturing lead time 7–45 working days |
| Grab / crane duty & voltage grade | Core count × nominal cross-section (mm²) | Nominal outside diameter (mm) | Max. dynamic tensile load (N) | Min. dynamic bending radius (mm) | Continuous ampacity at 30 °C in free air (A) | Approx. cable weight (kg/km) |
|---|---|---|---|---|---|---|
| 0.6/1 kV Motor-Grab (5GM5 / PUR) | 4G6 | 18.8 | 720 | 190 | 53 | 560 |
| 0.6/1 kV Motor-Grab (5GM5 / PUR) | 4G10 | 22.4 | 1,200 | 225 | 74 | 840 |
| 0.6/1 kV Motor-Grab (5GM5 / PUR) | 4G16 | 25.8 | 1,920 | 260 | 99 | 1,180 |
| 0.6/1 kV Motor-Grab (5GM5 / PUR) | 4G25 | 30.8 | 3,000 | 310 | 131 | 1,720 |
| 0.6/1 kV Motor-Grab (5GM5 / PUR) | 4G35 | 34.4 | 4,200 | 345 | 162 | 2,240 |
| 0.6/1 kV Motor-Grab (5GM5 / PUR) | 4G50 | 39.6 | 6,000 | 400 | 202 | 3,060 |
| 0.6/1 kV Motor-Grab (5GM5 / PUR) | 4G70 | 44.6 | 8,400 | 450 | 250 | 4,020 |
| 0.6/1 kV Motor-Grab (5GM5 / PUR) | 4G95 | 50.2 | 11,400 | 505 | 301 | 5,210 |
| 0.6/1 kV Motor-Grab (5GM5 / PUR) | 3×120 + 3G25 | 53.4 | 10,800 | 535 | 352 | 6,040 |
| 0.6/1 kV Motor-Grab (5GM5 / PUR) | 3×150 + 3G25 | 58.2 | 13,500 | 585 | 404 | 7,310 |
| 0.6/1 kV Composite Grab + Control | 4G10 + 4×2.5 | 24.8 | 1,400 | 250 | 74 / 22 | 1,020 |
| 0.6/1 kV Composite Grab + Control | 4G16 + 4×2.5 | 28.2 | 2,100 | 285 | 99 / 22 | 1,380 |
| 0.6/1 kV Composite Grab + Control | 4G25 + 4×2.5 | 32.8 | 3,200 | 330 | 131 / 22 | 1,940 |
| 0.6/1 kV Composite Grab + Control | 4G35 + 4×2.5 | 36.4 | 4,400 | 365 | 162 / 22 | 2,480 |
| 0.6/1 kV Composite Grab + Control | 4G50 + 4×2.5 | 41.4 | 6,200 | 415 | 202 / 22 | 3,310 |
| 0.6/1 kV WtE Refuse Grab Control | 12G2.5 (PUR-SMK) | 21.6 | 1,100 | 215 | 18 | 740 |
| 0.6/1 kV WtE Refuse Grab Control | 18G2.5 (PUR-SMK) | 25.0 | 1,650 | 250 | 15 | 1,060 |
| 3.6/6 kV Grab Ship Unloader Drum | 3×50 + 3×25/3 | 46.2 | 4,500 | 555 | 212 | 3,590 |
| 3.6/6 kV Grab Ship Unloader Drum | 3×70 + 3×35/3 | 50.4 | 6,300 | 605 | 263 | 4,580 |
| 6/10 kV Grab Ship Unloader Drum | 3×50 + 3×25/3 | 47.8 | 4,500 | 575 | 218 | 3,790 |
| 6/10 kV Grab Ship Unloader Drum | 3×70 + 3×35/3 | 52.0 | 6,300 | 625 | 270 | 4,810 |
| 6/10 kV Grab Ship Unloader Drum | 3×95 + 3×50/3 | 56.8 | 8,550 | 685 | 326 | 6,080 |
These are the standards this construction is designed and manufactured to (DIN VDE 0250-814 for 0.6/1 kV grab cables and DIN VDE 0250-813 for 3.6/6–6/10 kV bulk unloader reeling cables).
For vertical motor-grab drops, install a double-eye strain-relief cable stocking with a ball-bearing swivel at the grab entry bellmouth to prevent rope spin from transferring into the cable.
Continuous ampacities are stated at +30 °C ambient air per DIN VDE 0298-4.
Standards
| Standard or specification | Application |
|---|---|
| DIN VDE 0250-814 | 0.6/1 kV heavy-duty double-sheathed reeling cables ((N)SHTÖU-SMK / Grab-SMK) for extreme vertical and horizontal reeling stress. |
| DIN VDE 0250-813 | 3.6/6 kV and 6/10 kV medium-voltage reeling cables ((N)TSCGEWÖU) for bulk grab ship unloaders. |
| DIN EN 60228 / VDE 0295 | Class 5 and Class 6 extra-flexible tinned copper conductors. |
| ISO 9001:2015 (Cert. 244-24-QI-17425-R0-Q) | Certified quality management system for reeling cable production (Jiangsu Tebaoflex Special Cable Co., Ltd.). |
Related cable options
Compare these cable options by service combination, movement, load, voltage and transmission requirement.
Stacker-Reclaimer & Bucket-Wheel Excavator Drum Reeling Cable (0.6/1–35 kV)
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Type W Magnet Crane Cable 2000V
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