最小O型圈橡膠密封圈線徑0.2MM有0.25毫米線徑0.3很多規格型號，比如內徑0.4*0.3外徑都小於1MM，最細小的O型圈線徑0.2MM的模具費差不多一萬，單價估計0.15-0.2具體要看數量，參數，材質！因為產品機械性能，故很多材質受限，比如腈橡膠材質的可以，矽橡膠O型密封圈就不能成型，產品精度0.02-0.01-0.03MM誤差看尺寸和材質，精度很高，產品因為最細小的型號因素，使用建議不要太多考慮這個設計尺寸，成本高，產出低，模具穴數不敢做太大！密封圈的防水圈性能很理想，因為真圓度高，產品也無毛刺披風毛邊等外觀不良缺陷，產品達到高精密之要求了！內徑最小0.3MM-0.4毫米，這個內徑是目前機械加工橡膠圈模具的極限！當然，關於精密度極限溫度，很多企業不同，有的高，有的低，開實力廠商的加工能力，一般用的進口刀具加工，我們惠州香江蘭昕實業有限公司的產品走中高端路線比較多
| 内径*线径 |
| 2.4*0.1 |
| 0.9*0.2 |
| 1.3*0.2 |
| 0.76*0.25 |
| 1.1*0.25 |
| 0.4*0.3 |
| 0.5*0.3 |
| 0.6*0.3 |
| 0.7*0.3 |
| 0.8*0.3 |
| 1.2*0.3 |
| 1.4*0.3 |
| 1.7*0.3 |
| 1.8*0.3 |
| 1.93*0.3 |
| 2*0.3 |
| 2.12*0.3 |
| 2.19*0.3 |
| 2.3*0.3 |
| 2.4*0.3 |
| 2.5*0.3 |
| 2.52*0.3 |
| 3.5*0.3 |
| 3.7*0.3 |
| 3.9*0.3 |
| 4*0.3 |
| 4.05*0.3 |
| 4.2*0.3 |
| 4.5*0.3 |
| 4.85*0.3 |
| 5*0.3 |
| 5.25*0.3 |
| 5.69*0.3 |
| 6*0.3 |
| 6.2*0.3 |
| 6.8*0.3 |
| 7*0.3 |
| 7.2*0.3 |
| 7.6*0.3 |
| 8.2*0.3 |
| 8.25*0.3 |
| 10*0.3 |
| 10.5*0.3 |
| 11*0.3 |
| 11.5*0.3 |
| 12*0.3 |
| 12.5*0.3 |
| 13*0.3 |
| 13.5*0.3 |
| 14*0.3 |
| 14.5*0.3 |
| 15*0.3 |
| 15.5*0.3 |
| 16*0.3 |
| 16.5*0.3 |
| 17*0.3 |
| 17.5*0.3 |
| 18*0.3 |
| 18.5*0.3 |
| 19*0.3 |
| 19.5*0.3 |
| 20*0.3 |
| 20.5*0.3 |
| 21*0.3 |
| 21.5*0.3 |
| 22*0.3 |
| 22.5*0.3 |
| 23*0.3 |
| 23.5*0.3 |
| 24*0.3 |
| 24.5*0.3 |
| 25*0.3 |
| 25.5*0.3 |
| 26*0.3 |
| 26.5*0.3 |
| 27*0.3 |
| 27.5*0.3 |
| 28*0.3 |
| 28.5*0.3 |
| 29*0.3 |
| 29.5*0.3 |
| 30*0.3 |
| 30.5*0.3 |
| 31*0.3 |
| 31.5*0.3 |
| 32*0.3 |
| 32.5*0.3 |
| 33*0.3 |
| 33.5*0.3 |
| 34*0.3 |
| 35.5*0.3 |
| 35*0.3 |
| 36*0.3 |
| 37*0.3 |
| 37.5*0.3 |
| 38.3*0.3 |
| 38.5*0.3 |
| 0.74*0.33 |
| 0.97*0.33 |
| 2.6*0.33 |
| 0.3*0.35 |
| 0.6*0.35 |
| 0.8*0.35 |
| 0.88*0.35 |
| 2.1*0.35 |
| 2.5*0.35 |
| 7*0.35 |
| 8.4*0.35 |
| 13.85*0.35 |
| 15.3*0.35 |
| 0.52*0.38 |
| 1.24*0.38 |
| 6.3*0.38 |
| 7.48*0.39 |
| 0.45*0.4 |
| 0.5*0.4 |
| 0.55*04 |
| 0.56*0.4 |
| 0.58*0.4 |
| 0.6*0.4 |
| 0.65*0.4 |
| 0.66*0.4 |
| 0.7*0.4 |
| 0.8*0.4 |
| 0.9*0.4 |
| 1*0.4 |
| 1.9*1*0.4 |
| 1.2*0.4 |
| 1.3*0.4 |
| 1.4*0.4 |
| 1.5*0.4 |
| 1.6*0.4 |
| 1.7*0.4 |
| 1.78*0.4 |
| 1.8*0.4 |
| 1.85*0.4 |
| 2*0.4 |
| 2.2*0.4 |
| 2.3*0.4 |
| 2.4*0.4 |
| 2.5*0.4 |
| 2.6*0.4 |
| 2.64*0.4 |
| 2.8*0.4 |
| 3*0.4 |
| 3.4*0.4 |