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6 × 19W + 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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6×19W+IWRC 是 6 股 ×19 丝（瓦林吞式结构）+ 独立钢绳芯 的线接触钢丝绳，结构紧凑、耐磨抗冲击，属于工业通用型中重载规格，符合 GB/T 20118-2017《钢丝绳通用技术条件》，适用于起重机械、建筑卷扬、港口装卸、矿山斜井提升等对耐磨性和承载稳定性要求较高的工况。
型号含义拆解
- 6：钢丝绳由 6 个外层股 组成
- 19W：每个外层股包含 19 根钢丝，采用瓦林吞式（Warrington）排列，股内为两种不同直径钢丝交替分布，外层粗钢丝提升耐磨性，内层细钢丝填补间隙，实现线接触受力
- IWRC：绳芯为独立钢绳芯（常规为 7×7 结构），区别于纤维芯（FC），可增强绳体的抗挤压性与承载能力
一、基础结构参数
参数项 详细说明 结构组成 6 个瓦林吞式外层股 + 独立钢绳芯（IWRC）；每股 19 丝为 “粗 - 细 - 粗” 交替排布，线接触设计降低股内钢丝接触应力，结构密实度高 钢丝材质 优质碳素结构钢（#60、#70、#72A），冷拔强化处理；高端型号可选热镀锌钢丝、合金钢丝，提升耐腐蚀性与抗磨损性能 表面处理 1. 光面：无镀层，适用于干燥无尘的室内重载工况2. 热镀锌：厚镀层（30~60μm），强耐腐蚀，适用于户外 / 沿海 / 矿山腐蚀环境3. 电镀锌：薄镀层（8~15μm），装饰性防锈，轻度潮湿环境可用 直径范围 常见 10~56mm，主流应用 16~40mm 中重载提升场景 公称抗拉强度 碳钢型：1570MPa、1670MPa、1770MPa、1960MPa（工业常用 1770MPa 等级） 捻向 右同向捻（RHRL）、左同向捻（LHLL）、右交互捻（RHRH）；6 股结构抗旋转性弱于 8 股绳，需搭配导向滑轮使用 重量系数 0.390~0.405（IWRC 芯参考值；热镀锌后重量增加 3%~5%） 最小破断拉力系数 0.340~0.350（瓦林吞式股金属截面积利用率高于点接触 6×19 钢丝绳，略低于瓦 - 西混合结构） 二、典型力学性能表
1. 碳钢型（1770MPa，光面）
公称直径（mm） 参考重量（kg/100m） 最小破断拉力（kN） 适用场景 16 76 112 小型起重机主钩、建筑卷扬机 20 118 178 中型起重机副钩、港口龙门吊辅助钩 28 232 348 塔吊主钩、矿山斜井提升 36 388 585 大型履带吊副钩、风电塔筒辅助吊装 40 472 708 港口卸船机、盾构机配套牵引 2. 碳钢型（1770MPa，热镀锌）
公称直径（mm） 参考重量（kg/100m） 最小破断拉力（kN） 适用场景 20 124 174 户外建筑卷扬机、潮湿环境吊装 28 240 340 沿海港口装卸、矿山腐蚀环境运输 36 400 572 海上平台轻型牵引、化工园区物料吊装 注：热镀锌处理后破断拉力比光面低 1%~2%；抗拉强度提升至 1960MPa 时，破断拉力约增加 11%~13%。三、核心特性
- 耐磨性优异股外层粗钢丝与卷筒、滑轮接触时磨损速率低，在粉尘、砂石等恶劣工况下，使用寿命比普通点接触 6×19 钢丝绳长 15%~25%，适配矿山、港口等场景。
- 抗冲击与抗挤压能力强IWRC 钢绳芯提供强力支撑，搭配瓦林吞式股的弹性缓冲，在冲击载荷下不易出现断丝、鼓包；径向抗挤压性能好，多层缠绕卷筒时绳体不易变形。
- 柔韧性与承载均衡纯瓦林吞式股的柔韧性优于瓦 - 西混合结构，可适配中等直径卷筒，满足频繁起升下放的作业需求；同时线接触设计保证受力均匀，承载能力满足中重载设备要求。
- 通用性强，性价比高属于国标经典规格，配套的卷筒、滑轮、卡扣等配件成熟易采购，生产成本低于瓦 - 西混合结构钢丝绳，是中重载工况的高性价比选择。
四、选型与使用要点
- 安全系数选择
- 中型起重 / 建筑吊装：5~6 倍
- 矿山运输 / 港口装卸：6~7 倍
- 严禁用于载人设备及无导向滑轮的单侧长距离牵引
- 环境适配原则
- 干燥室内重载 → 光面碳钢绳
- 普通户外 / 矿山 → 热镀锌碳钢绳
- 沿海 / 酸碱腐蚀环境 → 合金钢丝热镀锌型号
- 卷筒与滑轮匹配
- 卷筒直径 ≥ 钢丝绳直径的 18~22 倍
- 滑轮直径 ≥ 钢丝绳直径的 16~20 倍
- 滑轮槽底半径需与绳径匹配，防止局部应力集中导致断丝
- 维护注意事项
- 定期加注钢丝绳专用润滑脂，润滑钢丝同时保护 IWRC 芯免受锈蚀
- 检查时重点关注股间断丝、绳径磨损，单股出现 3 丝以上断丝需立即报废
- 避免钢丝绳与尖锐物体碰撞，防止股结构损伤
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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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