此类防护罩具有不怕脚踩、硬物冲撞不变形、寿命长、密封好、和运行轻便等特点。
护罩行程长，压缩小，长度的比值为1：10
该产品使用专业的材料，耐冷却剂，放油，砂轮沫和铁肖等等；
护罩具行程长和压缩小的优点；
护罩的风箱速度可达200m/分；
护罩内没有任何金属零件，不用担心护罩工作时会出现零件松动而给机器造成严重的破坏。
| LGB | Lmax | Lmix | D2mm | LGB | Lmax | Lmix | D1 | D2mm | ||
| 规格Specifications | mm | mm | Ref.spec | 规格 Specifications | mm | mm | mm | 参考尺寸 | ||
| 20-250-30 | 250 | 30 | 40 | 70-400-820 | 400 | 80 | 70 | 95 | ||
| 30-250-45 | 250 | 30 | 41 | 70-750-100 | 750 | 100 | 70 | 94 | ||
| 30-450-50 | 450 | 30 | 50 | 70-1400-120 | 1400 | 120 | 70 | 104 | ||
| 30-600-50 | 660 | 30 | 56 | 70-1800-120 | 1800 | 120 | 70 | 120 | ||
| 40-300-45 | 300 | 40 | 54 | 75-400-80 | 400 | 80 | 75 | 89 | ||
| 40-550-50 | 550 | 40 | 67 | 75-600-100 | 600 | 100 | 75 | 95 | ||
| 40-800-80 | 800 | 40 | 65 | 75-900-120 | 900 | 120 | 75 | 97 | ||
| 40-950-80 | 950 | 40 | 69 | 75-1200-120 | 1200 | 120 | 75 | 104 | ||
| 45-550-50 | 550 | 45 | 73 | 75-1600-1100 | 1600 | 110 | 75 | 120 | ||
| 45-700-80 | 700 | 45 | 68 | 80-400-80 | 400 | 80 | 80 | 89 | ||
| 45-1000-100 | 900 | 45 | 70 | 80-600-120 | 600 | 120 | 80 | 95 | ||
| 50-500-50 | 1000 | 50 | 73 | 90-900-110 | 900 | 110 | 90 | 97 | ||
| 50-700-80 | 500 | 50 | 72 | 80-1200-120 | 1200 | 120 | 80 | 104 | ||
| 50-900-100 | 700 | 50 | 70 | 80-1400-120 | 1400 | 120 | 80 | 115 | ||
| 45-1200-100 | 900 | 45 | 77 | 85-400-80 | 400 | 80 | 85 | 94 | ||
| 55-350-50 | 1200 | 55 | 84 | 85-600-100 | 600 | 100 | 85 | 97 | ||
| 55-550-80 | 350 | 55 | 72 | 85-800-125 | 800 | 125 | 85 | 105 | ||
| 55-800-80 | 550 | 55 | 72 | 85-1000-125 | 1000 | 125 | 85 | 115 | ||
| 55-1000-120 | 800 | 55 | 78 | 85-1200-125 | 1200 | 125 | 90 | 120 | ||
| 55-1400-110 | 1000 | 55 | 77 | 90-400-100 | 400 | 100 | 90 | 100 | ||
| 60-400-50 | 1400 | 60 | 86 | 90-600-100 | 600 | 100 | 90 | 105 | ||
| 60-600-80 | 400 | 60 | 79 | 90-800-125 | 800 | 125 | 90 | 106 | ||
| 60-900-100 | 600 | 60 | 78 | 90-900-125 | 900 | 125 | 90 | 126 | ||
| 60-1200-120 | 900 | 60 | 87 | 90-1200-125 | 1200 | 125 | 95 | 132 | ||
| 60-1600-120 | 1200 | 60 | 88 | 95-400-100 | 400 | 100 | 95 | 105 | ||
| 65-400-50 | 1600 | 65 | 98 | 95-600-125 | 600 | 125 | 95 | 111 | ||
| 65-700-80 | 400 | 65 | 85 | 95-1000-125 | 1000 | 125 | 95 | 111 | ||
| 65-1000-100 | 1000 | 65 | 87 | 100-600-120 | 600 | 125 | 100 | 127 | ||
| 65-1400-110 | 1400 | 65 | 95 | 100-800-125 | 800 | 120 | 100 | 137 | ||
| 65-1800-110 | 1800 | 65 | 109 | 120-600-125 | 600 | 125 | 120 | 150 | ||
