A portable spring‑type mechanical scale uses a calibrated spring and lever mechanism to measure weight. As weight is applied, the internal spring stretches and the pointer on a large analog dial shows the load. Because it is fully mechanical, it requires no batteries or electricity and is ideal for simple, rugged weighing tasks up to 100 kg (220 lb).
📏 Technical Specifications
|
Specification |
Details |
|
Scale Type |
Spring‑Type Mechanical Hanging Scale |
|
Capacity |
100 kg (0–100 kg) |
|
Readout Type |
Analog Dial with pointer needle |
|
Graduation / Resolution |
Marked increments (typically 1 kg graduations) |
|
Display Units |
kg (primary) and often lb secondary markings |
|
Accuracy |
Approx. ±1 % to ±2 % of full scale (typical for mechanical spring scales) |
|
Mechanism |
Spring and lever system (fully mechanical) |
|
Power Source |
None — no batteries or electronics |
🧰 Construction & Materials
|
Feature |
Specification |
|
Body Material |
Durable metal housing / steel frame |
|
Hook Material |
Alloy steel hook with safety latch (top and bottom) |
|
Dial Cover |
Clear protective lens (plastic or glass) |
|
Portable Size |
Compact, lightweight design for easy carrying |
|
Finish |
Powder‑coated/sturdy paint for durability |
📊 Dial & Reading Features
- Large Analog Dial with bold graduations for easy weight reading
- Dual scale markings in kg and lb (optional depending on model)
- Pointer Needle directly indicates load as spring deflects
- Clear Markings for quick visual assessment without electronics
🏭 Performance Characteristics
✔ No Power Needed: Works without batteries, ideal for outdoor and remote use
✔ Instant Reading: Weight shown immediately as load is suspended
✔ Durable & Rugged: Suitable for workshop, farm, market, and warehouse use
✔ Low Maintenance: Simple mechanics with long service life
📦 Typical Physical Dimensions
(Values may vary by manufacturer/model)
| Dimension | Typical Range |
|--------------
|-------------|------------------|
| Body Diameter (Dial) | ~150 – 200 mm |
| Scale Body Height | ~180 – 230 mm |
| Net Weight | ~0.8 – 1.5 kg |
| Hook Opening Diameter | ~30 – 40 mm |
🏭 Common Applications
- 🎯 Workshops & Fabrication Shops — weighing parts, tools, material bundles
- 📦 Warehouses & Logistics — quick load checks without platform scales
- 🥬 Markets & Agriculture — weighing produce, sacks, bulk goods
- 🏗️ Construction Sites — checking material weights overhead
- 🚚 Field & Outdoor Use — portable weighing without batteries
📌 Advantages of Spring Mechanical Scales
✅ Affordable: Lower cost than electronic alternatives
✅ Portable: Easy to carry and hang anywhere
✅ Power‑Free: Always ready to use — no batteries required
✅ Rugged Build: Withstands rough environments
✅ Simple to Use: Just hang and read
⚠️ Limitations
⚠ Less precise than electronic scales (±1–2% typical)
⚠ No tare, hold, zero reset, or digital data functions
⚠ Subject to drift over very long use without periodic calibration
🧠 Usage Notes
✔ Hang the scale from a firm anchor point (beam, hook, crane)
✔ Ensure load hangs freely without touching surroundings
✔ Read the pointer once it has stabilized
✔ For best accuracy, keep the scale clean and avoid impact or overloading