JTVM Lever Block
● All-steel construction featuring, rugged gear case and hand wheel, exceptional durability.
● Reinlorce double pawl brake system and lager dia. pawl springs ensure reliable brake.
● Unique curling design-This leature enables the hand chain to successlully feed directly into the wheel sprocket from many directions and angles.
● GBO heat treated alloy load chain.
● Forged alloy Steel Hooks-Industrial rated hooks rotate 360 degrees for easy rigging. Hooks slowly stretch to indicate an overload situation increasing jobsite safety.
● Sealed roller bearings-Greatly improving performance and serve life of the product.
● Certification-Load tested to 150% of capacity with certificate.
VM手扳葫芦性能参数表
| 型号 | VM0.25 | VM0.25(大头) | VM0.5 | |
| 额定起量(t) | 0.25 | 0.25 | 0.5 | |
| 标准起升高度(m) | 1 | 1 | 1.5 | |
| 试验载荷(KG) | 375 | 375 | 750 | |
| 两均间最小距高H (mm) | 200 | 230 | 250 | |
| 满载时手板力(N) | 200 | 200 | 240 | |
| 起重链条的数（行） | 1 | |||
| 起重链条直径(mm) |
Φ3.2x9 |
Φ4×12 | Φ4×12（Φ4.3） | |
| 手柄长度L(mm) | 145 | 160 | 160 | |
| 主要尺寸 | A | 91 | 101 | 101 |
| B | 59 | 63 | 63 | |
| C | 81 | 92 | 92 | |
| D | 32 | 32 | 34 | |
| 净重 | 1.5 | 2.3 | 2.5 | |
| 起升高度每米增加的重量(KG) | 0.22 | 0.37 | 0.37 | |
