Perforated Cable Ladder Tray Ventilated Carbon Steel 75mm-250mm Depth Hot Dip

Perforated Cable Ladder Ventilated combines the strength of a ladder with the airflow of a perforated tray: the rungs support the cable at close centres while the perforated side rails and open geometry let heat leave the bundle instead of accumulating inside a closed section.

The ladder is formed from galvanized steel with 75 mm to 250 mm rail height, 150 mm to 900 mm usable width, side rail thickness of 1.5 mm to 3.0 mm and rungs of 2.5 mm to 5.0 mm at 225 mm, 300 mm or 450 mm pitch. Perforations reduce weight and give cable ties a positive anchoring point without drilling.

Ventilation is the engineering point. Cable current rating depends on how fast heat can leave the conductor surface, and an open ventilated route can allow a higher derating factor than a solid bottom tray, which in practice means smaller conductor sizes for the same load and a lower material cost over the whole installation.

The perforated pattern also improves fire performance and cleanability: water from a sprinkler or a washdown passes through instead of pooling, dust does not accumulate in a closed channel, and thermal imaging surveys see the cable rather than the tray bottom. Support spans of 1.5 m to 9 m are achieved with the standard bracket family.

BENDIN produces this ladder at up to 50000 m per week with 180 staff and thirty years of galvanized cable support experience, exporting 60 to 70 percent of output to industrial and infrastructure contractors. Perforation quality, galvanized coating thickness and rung spacing are checked on every batch.

Minimum order 100 m, 15 to 25 working day delivery, 10 to 20 USD per metre, carton, box or wooden case packing, terms L/C, D/P or T/T. Send the cable schedule and the ambient temperature and we will confirm the width, the perforation pattern and the ventilation derating assumption.

BENDIN holds ISO 9001 quality certification and issues CE Declarations of Conformity. The standards above state the design and test basis of this product; third party test reports or national approvals are supplied on request and are not implied unless confirmed in the contract.

Dimensions, rung spacing and surface treatment are produced to project drawings. Load and deflection calculations are issued for spans above 3 m.

• Power and control cable routes in plants
• Data centre and telecom ventilated runs
• Food and beverage washdown areas
• Tunnels and car parks
• Industrial retrofits with heat constraints

Q: Why does perforation help cable performance?
A: Heat leaves the bundle through the open rungs and perforated rails, which supports a better derating factor than a solid bottom tray and keeps conductor temperature lower.

Q: Does the perforation weaken the ladder?
A: The pattern is positioned away from the neutral axis and the rail thickness is sized for the load case, so the rated load is maintained and verified by calculation.

Q: Is it suitable for washdown areas?
A: Yes. Water drains through the perforations instead of pooling, and dust does not accumulate as it would in a closed channel.

Q: What is the minimum order?
A: Minimum order 100 m, delivery 15 to 25 working days, prices from 10 to 20 USD per metre.