HELUCHAIN® TOPSERV®: New Servo Cables for Drag Chains
HELUKABEL is expanding its HELUCHAIN® cable portfolio for highly dynamic drag chain applications. With the HELUCHAIN® TOPSERV® 201 PVC UL/CSA and HELUCHAIN® TOPSERV® 211 PUR UL/CSA, we are introducing two high-quality servo cables designed for long-travel, sliding applications such as material handling and port systems. Users can choose between two jacket materials tailored to the demands of different applications and operating environments.
The HELUCHAIN® TOPSERV® 201 PVC UL/CSA and HELUCHAIN® TOPSERV® 211 PUR UL/CSA are designed for connecting servo motors in drive systems. These orange servo cables include an additional shielded twisted pair for motor temperature monitoring or brake control. With a minimum bend radius of just 7.5 × d (outer diameter), they deliver exceptional flexibility for highly dynamic drag chain applications.
Users can choose between two outer jacket materials. The cost-effective PVC option offers high durability under continuous movement, while PUR is ideal for applications requiring oil resistance, low-temperature performance, or halogen-free materials. Both versions feature shielding with 85% coverage and a flat braid angle to minimize electromagnetic interference (EMI).
One key factor behind the durability of these cables is their pressure-extruded inner jacket. This construction fills the gaps within the stranding, precisely guiding the conductors along the cable length while maintaining stable contact of the overall shield during bending. As a result, HELUCHAIN® TOPSERV® cables can withstand millions of bend cycles in real-world operation—even in extreme applications.
The HELUCHAIN® TOPSERV® 201 PVC UL/CSA and HELUCHAIN® TOPSERV® 211 PUR UL/CSA are available with power conductor cross sections ranging from 15 to 9 AWG (1.5 to 6 mm²). These robust servo cables deliver long-lasting durability and help ensure reliable machine and plant operation—even under demanding motion conditions.
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