Question 1

What is the IS 3832 standard for chain pulley blocks?

Accepted Answer

IS 3832 is the Indian Standard for manually operated chain pulley blocks (manual chain hoists). It covers construction, marking, testing and safe working load for industrial lifting. Our blocks are sourced from manufacturers building to BIS-aligned requirements with stamped WLL, grade-rated chain and tested brake mechanisms.

Question 2

What safety factor applies to a manual chain pulley block?

Accepted Answer

Industrial manual chain hoists are typically designed with a minimum safety factor of 4:1 on the nominal chain — meaning break load is at least four times the rated WLL stamped on the block. Always lift within the marked safe working load and inspect chain, hooks and brake before each shift.

Question 3

Grade 80 vs grade 100 load chain — which should I choose?

Accepted Answer

Grade 80 alloy chain is the standard for most manual chain pulley blocks in India — strong, ductile and cost-effective for workshop and site lifting. Grade 100 offers higher strength per link size (lighter assembly for the same WLL) and is chosen for frequent-duty or weight-sensitive rigging. Match chain grade to the block rating and never mix unmatched components.

Question 4

How much can a chain pulley block lift?

Accepted Answer

Capacity depends on the stamped working load limit (WLL) — our range spans 0.5 ton to 10 ton and above for project enquiries. Lift height (3 m, 6 m, 9 m) and reeving (single fall, double fall, quad fall) affect hand-pull effort but not the rated WLL when used vertically. Refer to the safe working load chart on each product page and never side-load the hook.

Question 5

How does a manual chain pulley block work?

Accepted Answer

Pulling the hand chain rotates a lift wheel that draws load chain through the block, raising the lower hook. Releasing load is controlled by the built-in brake — the load stays suspended when you stop pulling. Double-fall and quad-fall reeving divides pull force across more chain legs, making heavier lifts easier at the cost of slower travel speed.

Question 6

What is the HSN code and GST rate for chain pulley blocks in India?

Accepted Answer

Chain pulley blocks (manual chain hoists) typically fall under HSN 8425 for hoists and lifting machinery — the applicable GST rate depends on classification and invoice type. We provide GST-compliant invoices on every order; share your GSTIN on checkout or enquiry for B2B procurement records.

Question 7

Do you supply chain pulley blocks for bulk orders in Delhi NCR?

Accepted Answer

Yes. We are based in Delhi NCR and supply chain pulley block bulk orders to contractors, dealers and industrial buyers nationwide. Share your capacity, lift height and quantity for a GST quote — WhatsApp or use the Enquire button on any product below.

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Chain Pulley Block – Manual Chain Hoists (1 Ton to 10 Ton)