Product snapshot: Grassland 100 mm Ultra Thin
Origin: No.88 Economic and Technological Development Zone, Shucheng, Hejian, Hebei, P.R. China. It’s a serious manufacturing cluster—lots of bonded-abrasive know-how packed into a few streets.
| Spec | Details (≈ real-world may vary) |
|---|---|
| Outer Diameter | 100 mm (4") |
| Thickness | 1.2 mm ultra-thin |
| Bore | 16 mm (5/8") |
| Grade | A 36 RBF (Alumina; resin-bond; fiberglass reinforced) |
| Max speed | 15300 m/min (per supplier data); follow tool RPM per ANSI/EN |
| Applications | Steel, stainless, construction steel, NF metals, cast, plastics, mineral-based, pipes, flat iron, tins |
| Compliance | Designed to EN 12413; use per ANSI B7.1 |
What’s inside, and why it matters
-
- Materials: premium fused alumina grains, phenolic resin matrix, dual fiberglass meshes for rigidity.
- Methods: graded grain sizing, cold-press forming, multi-step curing, balancing, and burst testing.
- Testing standards: burst speed per EN 12413, dimensional runout, hardness window, and sample cut-rate audits.
- Service life: in shop trials, ≈30–60 cuts on 12 mm mild-steel rod at 90°, ≈18–25 on 304 stainless. Your technique and grinder RPM shift the numbers, of course.
Real usage scenarios
Fabrication and MRO crews like the thin-kerf feel—less heat, less burr. HVAC folks slice hanger rod and sheet; automotive body techs notch brackets; electricians trim tray and conduit. Many customers say the wheel “stays sharp” longer than discount options, which, to be honest, tracks with the grain quality we’ve seen.
Quick case notes
• Midwest fab shop cut average cycle time on 1" x 1/8" angle by ~11% moving to 1.2 mm kerf. Less post-grind work, surprisingly more than the raw cut-time saved. • A site crew in Dubai reported fewer wheel swaps on stainless tray—probably the cooler cut helping.
Customization (including 4.5-inch class)
Need a true 115 mm configuration? Grassland supports 115 × 1.0/1.2/1.6 mm with 22.23 mm bore, private label, and color-coded safety labels. Packaging: 25/shrink, 200/case. If you spec a 4.5 metal cutting disc for stainless bias, ask for tighter hardness window and SSI-friendly labeling.
Vendor landscape: how it stacks up
| Brand/Model | Spec | Compliance | Avg cut on 20×20 mm mild-angle | Notes |
|---|---|---|---|---|
| Grassland Ultra Thin | 100×1.2×16 mm | EN 12413; ANSI B7.1 use | ≈5.6 s/cut; low burr | Good balance; cool cut |
| Generic Budget 4.5" | 115×1.6×22.23 mm | Mixed; labeling vague | ≈7.8 s/cut; higher burr | Cheaper, but more rework |
| Premium EU 4.5" | 115×1.0×22.23 mm | EN 12413; oSa | ≈5.2 s/cut; very low burr | Top performance, higher cost |
Data from controlled shop tests; your grinder, pressure, and material will shift results.
Safety, technique, and longevity
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- Use guards; match disc diameter to guard.
- Keep RPM within tool rating; avoid side load on thin wheels.
- Let the abrasive cut—don’t pry.
- Store dry, 15–25 °C; check expiry and label icons (EN pictograms).
Industry trend? Thinner kerfs and smarter bonds. Shops are moving from 1.6 mm to 1.2 mm (and even 1.0 mm on 115 mm) for speed and lower heat tint on stainless. If you’re speccing a 4.5 metal cutting disc lineup for mixed steels, keep a few 1.6 mm in the drawer for crosscuts on thicker stock—stability counts.
Final take
The Grassland 100 mm Ultra Thin punches above its size. It’s quick, controlled, and kind to your post-process. If you need a 115 mm twin for your fleet, ask for the 22.23 mm bore variant and keep the same cut feel across tools. It’s a small detail, but over a workweek, those details add up.
- EN 12413: Safety requirements for bonded abrasive products.
- ANSI B7.1: Safety requirements for the use, care, and protection of abrasive wheels.
- ISO 9001 and typical factory burst-testing protocols for bonded abrasives; see also oSa guidance.
Post time:Oct - 16 - 2025
