鍛鋼輪承載所有胎面材質中最高的負載，並且無懼高溫、焊接飛濺、切屑與會摧毀高分子輪的地面損傷。
搭配焊接厚鋼板支架，構成最嚴苛工廠地面適用的 RM-Extreme 系列。
代價是地面與噪音：鋼材沒有任何緩衝，因此只適合本來就是鋼板、嚴重磨損的水泥地或軌道——不適合完工地面。若仍需要一定程度的負載分散，雙輪鍛鋼設計可降低點載荷。
規格
- 單顆承重最高 2000 kg
- 鍛造並加工的胎面，確保同心運轉
- 搭配耐高溫潤滑脂，耐熱運行
- 精密軸承選項：滾珠、滾子、滑動
表面處理
鍛造原色、鍍鋅或烤漆
| Bracket finish | What it does | Specify it when |
|---|---|---|
| Zinc plating (blue/white) | Baseline corrosion protection | Standard dry indoor use |
| Chrome plating | Hard, decorative, easy to clean | Visible / cleanroom-adjacent equipment |
| Powder coating | Custom color, good corrosion resistance | Brand colors, outdoor-adjacent use |
| Stainless steel 304 | No plating to fail | Washdown, food, medical |
| Stainless steel 316 | Resists chlorides | Salt, brine, marine air, harsh cleaning chemicals |
測試
胎面同心度經加工保證；靜態載重測試
| Selection factor | Rule of thumb | Effect on performance |
|---|---|---|
| Load sizing | Total load ÷ 3 (not ÷ 4) | On uneven floors only three wheels carry the cart |
| Wheel diameter | Bigger rolls easier | Larger wheels cut push force and bridge gaps |
| Tread hardness | Softer = quieter, harder = easier rolling | Pick the softest tread that carries the load |
| Bearing choice | Precision ball for manual pushing, roller for heavy loads | Bearings dominate rolling resistance at high load |
| Swivel vs rigid | 2 swivel + 2 rigid is the standard cart setup | All-swivel carts wander; all-rigid carts cannot steer |
| Floor condition | Rough floors need bigger wheels and softer treads | Small hard wheels on bad floors destroy both |
Capability commitments on this page are owner-confirmed (2026-09-29).