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Elevator 8 × 19S-IWRC
A company specializing in the production, research and development, and sales of steel wire ropes. It develops and produces supporting services for elevator rope manufacturers, focusing on 6 * 19 steel wire ropes. At the
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电梯专用 8×19S-IWRC 钢丝绳是针对中低速电梯曳引系统研发的高耐磨、低旋转、耐弯曲疲劳特种钢丝绳，符合 GB 8903-2018《电梯用钢丝绳》 标准，适配住宅电梯、商用轻型载货电梯、医用电梯，尤其适合对运行噪音低、维保便捷性要求高的电梯场景。
一、型号含义拆解（电梯工况专属优化）
型号部分 含义说明 8 外层8 个工作股，相比 6 股结构截面圆整度提升 20%，载荷分布更均匀，抗旋转扭矩≤0.32 N・m/100m，可有效抑制电梯启停时的绳体扭转，避免轿厢晃动、异响 ×19S 西鲁式股结构（S=Seale），每股由 19 根粗细分级的钢丝分层捻制而成，外层为粗钢丝、内层为细钢丝，经电梯专用冷压实工艺处理后，股内钢丝呈面接触状态，间隙≤0.01mm，耐磨性能比点接触结构提升 40% 以上 -IWRC 独立钢丝绳芯（电梯专用 7×19 紧凑型结构），径向支撑力均衡，兼顾绳体柔韧性与抗蠕变性能，避免长期运行后绳体伸长导致的平层精度偏差，适配小直径曳引轮工况 二、电梯专用核心技术参数
参数项 详细说明 结构组成 8 个西鲁式压实外层股 + 独立钢丝绳芯；采用外层右捻 + 绳芯左捻的交叉捻工艺，旋转稳定性满足电梯曳引绳低扭转要求 钢丝材质 电梯专用特级高碳钢（#82B 精炼级），抗拉强度波动≤30MPa，屈强比≥0.92，耐疲劳次数≥3.2×10⁶次（弯曲半径 D=8d），远超通用钢丝绳标准 表面处理 1. 镀锌磷化复合处理：先磷化（增强润滑脂吸附性）后热镀锌（镀层厚 25~38μm），防锈耐磨，适配潮湿机房、半户外电梯2. 光面浸电梯专用曳引脂：涂覆高粘附性、低噪音曳引脂，摩擦系数稳定在 0.08~0.09，减少曳引轮磨损与运行噪音3. 电镀锌：仅适用于干燥无尘机房的低速杂物电梯 直径范围 常见 6~12mm（中低速电梯主流规格），适配曳引轮半圆槽、浅 U 型槽 公称抗拉强度 1770MPa（电梯专用优选等级），兼顾强度与韧性，杜绝钢丝脆断风险 最小破断拉力系数 ≥0.39（满足 GB 8903-2018 强制要求），安全冗余充足，配套电梯安全系数≥12 蠕变伸长率 ≤0.06%（额定载荷下运行 10⁴次），确保电梯平层精度≤±1.5mm 三、典型性能表（1770MPa 镀锌磷化 + 电梯专用脂）
公称直径（mm） 参考重量（kg/100m） 最小破断拉力（kN） 适配电梯类型 6 13.2 11.5 杂物电梯、小型医用电梯 8 29.0 25.8 住宅乘客电梯（6 人以下） 10 45.5 39.0 中型乘客电梯、轻型载货电梯 12 64.5 56.5 商用轻型载货电梯、观光电梯 四、电梯工况核心特性
- 高耐磨适配高频次运行西鲁式股外层粗钢丝结构 + 面接触压实工艺，与曳引轮槽的接触应力分布均匀，耐磨性能优异，适配住宅电梯每日高频次启停的使用场景，钢丝绳使用寿命比普通复合股型号延长 30%~50%。
- 高柔韧性适配小机房电梯绳体最小弯曲半径可低至8 倍绳径，配合紧凑的钢芯结构，安装布线时可灵活适配小机房电梯的狭小空间，无硬弯、卡阻风险，降低安装难度。
- 低噪音运行提升乘坐体验面接触结构消除了股内钢丝的微动摩擦噪音，搭配专用低噪音曳引脂，运行过程中摩擦噪音≤48dB（额定速度 1.0m/s），远低于国标噪音限值，提升乘客乘坐舒适度。
- 高安全冗余杜绝安全隐患最小破断拉力系数符合国标强制要求，在电梯 125% 超载试验、110% 超速试验中均能稳定运行，无打滑、断丝风险；抗旋转性能优异，避免因绳体扭转导致的轿厢偏摆。
五、电梯专用选型与维保要点
- 选型匹配要求
- 绳径与曳引轮直径比需满足 d/D ≤ 1/40（GB 7588-2020 强制要求），避免过度弯曲导致钢丝疲劳断丝
- 槽型匹配：6~8mm 绳径适配半圆槽，10~12mm 绳径适配浅 U 型槽，提升曳引力，降低打滑概率
- 严禁用通用 8×19S-IWRC 替代电梯专用型号，两者耐疲劳性能、抗旋转性能差异显著
- 维保关键事项
- 润滑管理：仅可使用电梯专用曳引脂，禁止使用普通钢丝绳润滑脂（易打滑、腐蚀绳芯）；脂层厚度保持 0.1~0.2mm，补脂周期建议为 8 个月 / 次
- 报废判定：出现以下情况立即更换（GB 8903-2018）：① 单股断丝数≥2 根；② 绳径磨损≥5%；③ 钢丝绳出现锈蚀、变形、松股、跳丝
- 更换周期：建议每 4 年强制更换（或运行里程达 35 万 km），即使外观无明显损伤也需更换，避免疲劳断裂风险
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common problem
Q
What kind of lubricant can prevent wire rope damage?
A
First, the smooth oil has good fluidity and soaking ability, allowing it to quickly enter the inside of the rope and the rope core when the wire rope is smooth pretreated, and can play a role in preventing bacteria from multiplying inside the rope core fibers.
Second, the lubricating oil adhered to the wire rope will not be easily wiped off, and the smoothing effect will not be affected within the specified temperature range. In addition, the lubricating oil with adhesive function can also prevent skid, which provides assistance for the friction of the elevator wire rope.
Third, it has a high oil film strength, which can resist the extremely high pressure between the steel wires in contact with each other under extremely heavy load, and can also resist decomposition and transformation.
Fourth, smooth oil has high cohesion, which can avoid the dripping of smooth oil, centrifugal loss when there is no exercise, and avoid grease waste and pollution to other equipment.
Fifth, it does not contain ingredients that can cause corrosion and rust in the steel wire rope, and the effect of anti-corrosion and anti-rust is better.
Sixth, its self-correcting ability is strong. When the wire rope is used, it constantly twists and turns, which will cause the surface oil film to continuously knead and expand. This requires a soft and high-temperature oil film to maintain the rope body from cracking.
Second, the lubricating oil adhered to the wire rope will not be easily wiped off, and the smoothing effect will not be affected within the specified temperature range. In addition, the lubricating oil with adhesive function can also prevent skid, which provides assistance for the friction of the elevator wire rope.
Third, it has a high oil film strength, which can resist the extremely high pressure between the steel wires in contact with each other under extremely heavy load, and can also resist decomposition and transformation.
Fourth, smooth oil has high cohesion, which can avoid the dripping of smooth oil, centrifugal loss when there is no exercise, and avoid grease waste and pollution to other equipment.
Fifth, it does not contain ingredients that can cause corrosion and rust in the steel wire rope, and the effect of anti-corrosion and anti-rust is better.
Sixth, its self-correcting ability is strong. When the wire rope is used, it constantly twists and turns, which will cause the surface oil film to continuously knead and expand. This requires a soft and high-temperature oil film to maintain the rope body from cracking.
Q
What are the classifications of wire ropes?
A
1, electric hoist wire rope: 6 * 37 + FC- 11/13/15/17.5
2, tower crane wire rope and multi-strand non-rotating wire rope: 6 * 19 + FC- 12/12.5, 6 * 37-13/14, 6 * 29FI + FC- 12/12.5, 4v39s + 5FC- 12/13/14, 35W * 7-12/13/14
3, car crane does not rotate wire rope: 4V39S + 5FC- 10/12/13/14/16/17, 35W * 7-10/12/13/14/15/16/17/18/20/22
4, pile driver flat wire rope: K6K36WS + IWR-/17.5/24/26/28/30/32/34/36/40/42/46
5, rotary excavator flat wire rope: 35W * K7- 24/26/28/30/32/36/40
6, dock crane wire rope: 6 * 36WS + IWR- 17.5/19 5/21.5/24/26
7, mine wire rope 6 * 19 + FC- 12.5/14/15.5/17/18.5/21 5/24.5/26/28, 6 * 19S + FC- 12.5/14/15.5/17/18.5/21 5/24.5
8, elevator wire rope: 8 * 19S + FC- 10/11/12/13/16
9. Hot-dip galvanized hanging basket wire rope: 4 * 31WS + PPC- 8.3/8
10. Hot-dip galvanized wire rope: 6 * 19/6 * 37/6 * 36WS/8 * 61/8 * 36WS/
11, galvanized wire rope: 6 * 7 + FC-/2/3/4
6 * 19 + FC-5/6/7 7/9.3/11, 6 * 12 + 7FC-5/6/7. 7/9.3/11, 7 * 19-5/6/8/10, 19 * 7-4/5/6/8/10, 6 * 37 + FC-8.7/9 3/11/13/15/17.5/19.5
12. Large diameter wire rope: above 60MM
13. Wire rope rigging (insertion, pressing, pouring, connectors, etc.):
14, coated wire rope: 2-3/3 - 4/4-5/5-6/6 - 8/8-12/12-15
15, binding wire rope: 6 * 12/6 * 15-13/14/15
The front represents the structure, and the back represents the diameter. For example: 6 * 37 + FC-11, the representative structure is 6 * 37 + FC, diameter: 11MM
2, tower crane wire rope and multi-strand non-rotating wire rope: 6 * 19 + FC- 12/12.5, 6 * 37-13/14, 6 * 29FI + FC- 12/12.5, 4v39s + 5FC- 12/13/14, 35W * 7-12/13/14
3, car crane does not rotate wire rope: 4V39S + 5FC- 10/12/13/14/16/17, 35W * 7-10/12/13/14/15/16/17/18/20/22
4, pile driver flat wire rope: K6K36WS + IWR-/17.5/24/26/28/30/32/34/36/40/42/46
5, rotary excavator flat wire rope: 35W * K7- 24/26/28/30/32/36/40
6, dock crane wire rope: 6 * 36WS + IWR- 17.5/19 5/21.5/24/26
7, mine wire rope 6 * 19 + FC- 12.5/14/15.5/17/18.5/21 5/24.5/26/28, 6 * 19S + FC- 12.5/14/15.5/17/18.5/21 5/24.5
8, elevator wire rope: 8 * 19S + FC- 10/11/12/13/16
9. Hot-dip galvanized hanging basket wire rope: 4 * 31WS + PPC- 8.3/8
10. Hot-dip galvanized wire rope: 6 * 19/6 * 37/6 * 36WS/8 * 61/8 * 36WS/
11, galvanized wire rope: 6 * 7 + FC-/2/3/4
6 * 19 + FC-5/6/7 7/9.3/11, 6 * 12 + 7FC-5/6/7. 7/9.3/11, 7 * 19-5/6/8/10, 19 * 7-4/5/6/8/10, 6 * 37 + FC-8.7/9 3/11/13/15/17.5/19.5
12. Large diameter wire rope: above 60MM
13. Wire rope rigging (insertion, pressing, pouring, connectors, etc.):
14, coated wire rope: 2-3/3 - 4/4-5/5-6/6 - 8/8-12/12-15
15, binding wire rope: 6 * 12/6 * 15-13/14/15
The front represents the structure, and the back represents the diameter. For example: 6 * 37 + FC-11, the representative structure is 6 * 37 + FC, diameter: 11MM
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