Pulleys Aluminium Manufacturer,Supplier and Exporter in India

Product Code : EL-SLE-5740
Jlab Export is a leading Pulleys Aluminium Manufacturer,and suppliers in India

Pulleys Aluminium (code EL-SLE-5740) are 51 mm aluminium pulleys with bracket and hook, used to build fixed, movable and block-and-tackle pulley systems in school and college mechanics practicals. Besides the single pulley, the listing covers a triple-sheave block with hooks, three pulleys in line with hooks, and a single pulley on a table clamp. They are made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.

Specifications

How Does It Compare with Other JLab Pulleys?

Choose this listing when you want one order line covering the single, triple-sheave, in-line and table-clamp pulleys. The deep V-groove singles and triples suit buyers who want the 50 mm sizes stated on those pages, the tandem block gives three different wheel sizes, and the bordered plastic-wheel pulleys offer double blocks as well.

What Are Aluminium Pulleys Used For?

Pulleys show students how simple machines trade effort against distance. A single fixed pulley only changes the direction of the pull, a movable pulley reduces the effort needed to lift a load, and a block and tackle made from two multi-wheel blocks reduces it further. By hanging slotted masses as the load and measuring the effort with a spring balance, students work out mechanical advantage (load ÷ effort), velocity ratio (the number of string segments supporting the movable block) and efficiency, as in the Machines chapter of ICSE class 10 physics and in college mechanics labs. The table-clamp pulley fixes to the edge of a bench so a string can run from a trolley or block over the wheel to a hanging mass, for force, motion and friction experiments.

Seat the string fully in the groove, keep the hooks and axles clean and free-running, and add load gradually so the string stays in the groove and the readings are not upset by jerks.

What to Specify When Ordering

• Version and quantity of each — single with bracket/hook, triple sheave, three in line, or single on table clamp; the minimum order is 10 units.
• Size — the listing gives 51 mm; confirm it applies to the version you need.
• Weights and measuring — add weight hangers, slotted masses and a spring balance to the same enquiry so each bench can run the experiment.

Frequently Asked Questions

Which pulley versions does this listing cover?
Four: a single aluminium pulley with bracket and hook, a triple-sheave block with hooks, three pulleys in line with hooks, and a single pulley on a clamp for a table. Name the version and quantity of each in your enquiry.

What size are the pulleys?
The listing gives 51 mm. It does not say whether every version uses the same size, so confirm the size for the versions you order.

How do I set up a block and tackle?
Hang one multi-wheel block from a fixed support, hook the load to a second block below it, and thread the string around the wheels of both. Ignoring friction, the load is shared between the string segments supporting the lower block, so the effort falls as the number of segments rises.

What is the table clamp pulley for?
It clamps to the edge of a bench so a horizontal string can pass over the wheel to a hanging mass. This is the usual set-up for pulling a trolley or block with a known force in motion and friction experiments.

How do these differ from the pulleys with aluminium borders?
This listing is for aluminium pulleys in a 51 mm size. The pulleys with aluminium borders have plastic wheels and are listed as single, double or triple blocks in parallel or series, without a stated size.

Are string, weights and hangers included?
No, only the pulley is covered. Weight hangers, slotted masses and spring balances are separate items, linked below.

What does an export quotation need?
The version and quantity of each, the destination country and port or city, your preferred delivery terms (for example FOB or CIF), any packing or labelling requirements, and the tender reference if one applies.

Who manufactures these pulleys?
Jain Laboratory Instruments Pvt Ltd, trading as JLab, makes them at its works in Ambala, Haryana, India, and quotes for them directly.

OEM Manufacturer

JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, an Indian manufacturer of mechanics and physics lab equipment, incorporated in 2017 and located on Hargolal Road, Ambala, Haryana. The pulleys are produced in JLab’s own works and not bought from a trader, so schools, colleges, dealers and importers order them factory-direct, each one is checked visually before packing, and later orders for extra blocks come from the same maker. JLab holds MSME Udyam registration UDYAM-HR-01-0003849 as a manufacturing enterprise and Importer-Exporter Code 3317504552. JLab exports worldwide and ships to buyers in every region — for example Tonga in Oceania, Mali in West Africa, Qatar in the Middle East, France in Western Europe and Italy in Southern Europe. For tender purchases see the JLab lab tenders page.

Weights and Force Measurement for Pulley Experiments

• Spring Balance — a newton meter with zero adjustment and hook for measuring the effort.
• Newton Weight Hangers — steel hangers in a range of sizes to carry the load.
• Masses — a hanger with nine slotted 10 g masses for adding load in small steps.

See the full School Lab Equipment range for more mechanics apparatus.

Request a Quote

Quotes come direct from the manufacturer. Use the Add To Cart enquiry button on this page, or send the version and quantity of each pulley (minimum 10 units), any weights or spring balances, and your delivery location through the contact page.

Last updated: 4 October 2026