What is the maximum cable diameter a copper and aluminum core hydraulic cable cutter can handle
2026-05-06
When selecting a Copper and Aluminum Core Hydraulic Cable Cutter, the most critical specification to evaluate is its maximum cutting capacity. For professionals in electrical installation, utility maintenance, and renewable energy sectors, using an undersized cutter leads to jagged cuts, damaged internal conductors, or tool failure. The Woma series of hydraulic cutters clearly states diameter limits based on material type, ensuring both safety and efficiency.
Understanding Cutting Capacity by Material
Unlike copper, aluminum core cables are softer but tend to deform more easily under pressure. A high-performance Copper and Aluminum Core Hydraulic Cable Cutter typically specifies two different maximum diameters due to material hardness differences. The table below illustrates standard capacities for professional-grade tools.
| Material Type | Maximum Diameter (mm) | Typical Applications |
|---|---|---|
| Copper Core Cable | 50 mm | Building power distribution, industrial feeders |
| Aluminum Core Cable | 55 mm | Overhead service drops, large conductor runs |
| Copper Flexible Cable | 45 mm | Welding cables, battery connections |
| Aluminum Alloy Core | 50 mm | ACSR, AAAC overhead lines |
For Woma hydraulic cutters, the Copper and Aluminum Core Hydraulic Cable Cutter model WMC-60H offers a copper capacity of 60 mm and an aluminum capacity of 70 mm, making it suitable for heavy substation work. Lower duty models may be rated at 40 mm for copper and 45 mm for aluminum.
Factors That Influence Real-World Cutting Performance
Even when a Copper and Aluminum Core Hydraulic Cable Cutter states a maximum diameter, actual performance depends on:
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Core stranding: Finely stranded copper (Class 5 or 6) requires less force than solid copper.
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Insulation thickness: Thick XLPE or rubber insulation adds effective diameter without increasing conductor load.
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Blade geometry: Woma's two-stage hydraulic advance prevents jamming at full rated capacity.
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Hydraulic pressure rating: A 12-ton hydraulic system handles larger diameters than 8-ton systems.
Copper and Aluminum Core Hydraulic Cable Cutter FAQ
Question: Can I cut a 70 mm aluminum core cable with a cutter rated for 55 mm copper?
Answer: Yes, in many cases. Because aluminum is approximately 40% softer than copper, the same Copper and Aluminum Core Hydraulic Cable Cutter can typically handle 15-20% larger aluminum diameters than copper. However, always check the manufacturer’s separate rating for aluminum. Woma tools provide both figures on the product label. Exceeding the aluminum rating may cause uneven compression or blade spreading.
Question: What happens if I exceed the maximum cable diameter on my hydraulic cutter
Answer: Forcing a Copper and Aluminum Core Hydraulic Cable Cutter beyond its stated capacity often results in incomplete cuts (uncapped strands), blade chipping, hydraulic oil leakage from overload relief valves, or permanent jaw deformation. In extreme cases, the cutter may fail to retract, trapping the cable. Woma advises staying within 90% of the rated diameter for regular use to preserve blade life.
Question: Does the maximum diameter include the cable insulation or just the conductor
Answer: Manufacturer specifications for a Copper and Aluminum Core Hydraulic Cable Cutter almost always refer to the conductor diameter (metal core only), not including insulation. For example, a cutter rated for 50 mm copper can handle a conductor of 50 mm even if the insulation adds another 5-8 mm. However, the tool’s jaw opening must physically accommodate the insulated cable. Woma cutters list both conductor capacity and jaw opening width on the technical datasheet.
Optimizing Cutter Selection for Your Worksite
When choosing a Copper and Aluminum Core Hydraulic Cable Cutter, consider your maximum real-world cable plus 20% safety margin. A contractor working with 35 mm copper main feeders should select a 50 mm rated model. Woma recommends portable battery-powered hydraulic cutters for diameters up to 45 mm, and separate two-stage hand pump cutters for 55-70 mm diameters.
Contact Us
For precise sizing assistance or to request a cutting capacity chart for your specific cables, reach out to the Woma engineering team. We provide free material testing and on-site demonstrations. Email or use the contact form on our official website to discuss your Copper and Aluminum Core Hydraulic Cable Cutter requirements today.
