Slotted masses
Product Code : SCL-MH-12638
Achieve uncompromised volumetric density and perfect vector loading in mechanics experiments with the Precision Laboratory Slotted Masses and Hangers, meticulously crafted by Educational Instrument India. Specifically engineered for educational institutions, engineering test blocks, and physics labs, these slotted weight discs feature a specialized precision-machined slot width. This custom geometry allows each disc to glide smoothly onto a matching central rod hanger while remaining securely locked against accidental slides, standard balance wobbles, or off-center tilt.
Our premium slotted weights are manufactured using state-of-the-art automated CNC milling out of solid brass blocks or cast iron compounds protected by a clean, rust-preventive powder-coat layer. Each disc has its nominal value clearly stamped, preventing student identification errors over years of continuous laboratory handle cycles. These weights serve as an indispensable curriculum asset for teaching force profiles, center-of-gravity principles, Atwood machine variables, Hooke’s law verification, and torque equilibriums.
By strictly regulating mass properties at our ISO-audited production facilities, Educational Instrument India delivers an affordable, elite educational kit that ensures high student engagement and reliable statistical results in every physical laboratory trial.
Product Specifications
We provide multiple standard metric setups (available as individual weight replacement elements or full grouped collections in premium wooden or plastic modular storage kits):
Hanger Rod Composition: Heavy-gauge Stainless Steel or Solid Chrome-plated Brass with an integrated top suspension loop and a wide baseline stop-disc flange.
Hanger Weight Options: Available in standard matching base weights of 10g, 20g, 50g, or 100g configurations.
Disc Increment Spectrum: Calibrated disc masses available in single or grouped sets of: 1g, 2g, 5g, 10g, 20g, 50g, 100g, and 200g.
Material Integrity: Precision-milled Raw Polished Brass (fractional lower range) or Hardened Structural Iron completed with an anti-corrosion enamel shell.
Slot Engineering Geometry: Keyhole-configured or flat-channeled linear slots with rounded interior edges to eliminate stress points and prevent friction jamming.
Accuracy Profile: OIML Class M2 compliance rating (within strict +/- 0.1% to 0.5% educational tolerance thresholds depending on structural resolution).
How to Use Slotted Masses in Physics Laboratories
To prevent mechanical strain on your support balances, maintain standard calibration indexes, and secure student workstations, adopt these operational guidelines:
Securing the Primary Hanger: Mount the empty suspension loop of the slotted mass hanger to your laboratory stand clamp, spring scale index hook, or dynamic pulley string line. Verify that the hanger hangs straight vertically.
Loading the Slotted Weight Discs: Align the slot gap of the chosen mass disc with the vertical stem rod of the hanger. Slide the disc inwards and carefully lower it onto the baseline resting flange.
Interlocking for Stability: When stacking multiple slotted discs, turn the slot cutouts away from each other (e.g., alternating orientations at 90-degree or 180-degree angles). This simple adjustment effectively prevents the discs from slipping off if the load swings or moves during dynamic kinetic tracking.
Post-Lab Maintenance & Audits: Carefully unstack the discs from the hanger. Wipe each disc down with a dry, non-abrasive cloth to remove fingerprints and surface oils. Return each component to its assigned slot in the storage case to avoid micro-abrasions that can degrade calibration accuracy over time.
Laboratory Stand Load & Force Warning: Always cross-reference the collective mass load (disc aggregate plus hanger weight) against the maximum technical rating of your spring scales, balance lines, or stand frames. For force calculation sheets, use the equation:
Avoid dynamic free-falls, as dropping heavy iron masses can cause physical injury or damage laboratory surfaces.
Frequently Asked Questions (FAQs)
Q: Is the mass of the hanger included in the total weight calculations during experiments?A: Yes. In precision physics experiments, the base mass of the hanger itself (typically 10g, 20g, or 50g, as stamped on its stem) must always be added to the sum of the slotted discs resting on it to find the total suspended mass.
Q: Why do some slotted discs feature an interlocking inner ridge layout?A: Many sets from Educational Instrument India feature an interlocking design with slightly raised lips or matching counter-bored centers. This profile prevents the stacked weight discs from sliding off or shifting when subjected to horizontal kinetic forces or rapid balance adjustments.
Q: Can these weights tarnish or lose mass over time through wear?A: Our solid brass configurations and enamel-coated iron discs are specifically treated to resist oxidation. However, dragging weights across rough surfaces or dropped impacts can nick the edges and alter their absolute mass value over time. Proper storage in padded boxes prevents this.
Q: Are these slotted weights compatible with third-party hangers from other brands?A: Yes. Educational Instrument India utilizes standard international dimensions for slot widths and stem tolerances. This makes our slotted discs highly versatile and compatible with most academic laboratory hangers worldwide.
Q: Does Educational Instrument India accommodate custom metric or imperial sets for tenders?A: Absolutely. As an experienced institutional scientific manufacturer, we specialize in fulfilling bulk school orders, international university tenders, and custom corporate configurations with tailored case materials (wooden box, plastic case, or bulk shrink-pack layouts).
