Slotted Mass Hanger, 1kg Manufacturer,Supplier and Exporter in India

The Slotted Mass Hanger, 1kg is a large format cast hanger that weighs 1kg on its own. It carries large slotted masses when a wire, beam or pulley cord is loaded in kilogram steps. The hanger is 26cm long and 7cm wide, and it is supplied as the hanger only, without slotted masses.

1kg slotted mass hanger specifications

Heavy-load practicals with the 1kg hanger

Young's modulus by Searle's method. Fix Searle's apparatus to a rigid wall mount and hang the 1kg hanger from the test wire, with a steady load on the reference wire beside it. Add large slotted masses one step at a time, bring the spirit level back to horizontal with the micrometer screw, and note each reading. Repeat while unloading.

Deflection of a loaded beam. On a beam deflection apparatus, hang the hanger at mid-span and add slotted masses in equal steps, noting the deflection at each total load. A straight-line graph of deflection against load shows that the beam is still bending elastically.

Limiting friction. Clamp a ball-bearing bench pulley to the bench edge and run a cord from a heavily loaded wooden block over it to the hanger. Add masses until the block just starts to slide, then divide the hanging weight by the total weight of the block and its load to estimate the coefficient of friction.

Frequently Asked Questions About the Slotted Mass Hanger, 1kg

How much clearance does the 1kg hanger need below its support?

Allow for the hanger's own 26cm length, the height of the slotted masses you plan to stack on it, and any stretch of the wire or cord. Leave a gap above the floor or bench as well, so the load never rests on anything while a reading is taken.

Why does Searle's apparatus use a second wire beside the loaded one?

The reference wire hangs from the same support and carries a constant load. If the room warms or the support gives slightly, both wires move together, so the spirit level between them shows only the extra stretch of the test wire caused by the slotted masses.

Why wait, and tap the frame, after each mass is added?

A freshly loaded wire takes a little time to reach its new length, and the level or screw can stick. Tap the frame lightly, wait until the bubble stays still, then read. Turn the micrometer screw in one direction only while levelling, so backlash does not creep into the reading.

Why take readings while unloading as well as loading?

If the loading and unloading readings agree at each load, the wire has stayed within its elastic limit and has not taken a permanent set. Averaging each pair also evens out small lags, and the mean extension for one load step then goes into the calculation.

How should students handle a hanger this heavy?

Hang it only from a firmly clamped hook or support and keep hands and feet out of the space beneath it. Lower each slotted mass onto the stem instead of letting it drop, and lift the stack off piece by piece at the end of the practical.

Apparatus and hangers for heavy slotted loads

• Searle's Apparatus
• Apparatus Young Modulus Searle's
• Pulley, Bench Mounting, Ball Bearing
• Slotted Mass Hanger, 500g
• Hangers with Slotted Weights
• Cantilever Beam Apparatus

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Last updated: 15 November 2026