We will continue to explore innovation, product updates, depending on customer demand for their own responsibility, carefully designed to provide reliable and high-quality Guide Rings, PTFE Guide Strips, Composite Bushings. Demand is the basis of innovation, sharing is the root of innovation, pursuit is the soul of innovation, and value is the goal of innovation. We have established long-term strategic partnerships with many well-known companies in the industry, and have been highly recognized by customers in terms of product quality and service.
Our piston wear rings are composed of phenolic resin reinforced with ultra strong special fiber, added with solid lubricants, processed under certain temperature and pressure. Compare to other fiber-reinforced (cotton fiber, polyester fiber, polyamide fiber and so on) phenolic products, this material has the largest compressive strength, it is suitable used as back-up rings for mine, coal machinery and equipment.
Product parameter
Color | Grey | |
Material | Phenolic resin reinforced with ultra strong special fiber PFC-7) | |
Density | 1.2-1.4g/cm³ | 0.043-0.051lb/in³ |
Tensile Strength | 74MPa | 10730PSI |
Ultimate Compressive Strength | 460MPa | 66700PSI |
Impact Strength | 45 J/m | |
Rockwell Hardness | 110HRM | |
Coefficient of friction | 0.15-0.25(Dry) | |
Temperature | -40° to 200° C | -104° to 392° F |
Product application
Kintowe piston wear rings guide pistons and piston rods in a hydraulic cylinder, minimizing transverse forces and preventing metal-to-metal contact. Use of wear rings reduces friction and optimizes the performance of piston and rod seals.
Product details
Machining tolerances
Height: 0/-0.30
Thickness: 0/-0.05
Outer diameter(OD): ±0.1
Inner diameter(ID): ±0.1
Cut gap could be in angle cut, butt cut, step cut
Outer diameter(OD) | ≤100 | 100<OD<200 | 200≤OD<400 | 400≤OD<600 |
Cut gap | 2 | 3 | 4 | 5 |
Limit deviation | ±1 | ±1 | ±1 | ±1 |
Product Qualification
Piston guide rings
OD x ID x H | OD x ID x H | OD x ID x H | OD x ID x H | |||
16 x 11 x 5.6 | 50 x 45 x 5.6 | 75 x 70 x 5.6 | 120 x 114 x 13 | |||
16 x 12.9 x 4 | 50 x 45 x 6.3 | 75 x 70 x 9.7 | 120 x 114 x 20 | |||
50 x 45 x 9.7 | 120 x 114 x 30 | |||||
18 x 13 x 5.6 | 50 x 46 x 12 | 80 x 72 x 12 | 120 x 114 x 40 | |||
18 x 14.9 x 4 | 50 x 46.9 x 4 | 80 x 74 x 13 | 120 x 115 x 9.7 | |||
80 x 74 x 20 | ||||||
20 x 15 x 5.6 | 55 x 50 x 4 | 80 x 74 x 25 | 125 x 119 x 13 | |||
20 x 16.9 x 4 | 55 x 50 x 5.6 | 125 x 119 x 15 | ||||
55 x 50 x 9.7 | 80 x 75 x 5.6 | 125 x 119 x 20 | ||||
25 x 20 x 5.6 | 55 x 50 x 25 | 80 x 75 x 9.7 | 125 x 119 x25 | |||
25 x 21.9 x 4 | 80 x 75 x 15 | 125 x 119 x 30 | ||||
60 x 54 x 10 | 125 x 120 x 9.7 | |||||
30 x 24 x 10 | 60 x 54 x 13 | 85 x 79 x 30 | ||||
30 x 25 x 5.6 | 60 x 54 x 20 | 85 x 80 x 5.6 | 130 x 124 x 13 | |||
30 x 26.9 x 4 | 60 x 54 x 30 | 85 x 80 x 9.7 | 130 x 124 x 30 | |||
130 x 125 x 9.7 | ||||||
32 x 27 x 5.6 | 60 x 55 x 5.6 | 90 x 84 x 13 | ||||
32 x 28.9 x 4 | 60 x 55 x 6.3 | 90 x 84 x 20 | 135 x 129 x 13 | |||
60 x 55 x 9.7 | 90 x 85 x 5.6 | |||||
35 x 30 x 5.6 | 90 x 85 x 9.7 | 140 x 134 x 13 | ||||
35 x 31.9 x 4 | 63 x 57 x 13 | 140 x 134 x 20 | ||||
63 x 57 x 20 | 95 x 89 x 13 | 140 x 134 x 25 | ||||
40 x 34 x 10 | 63 x 58 x 5.6 | 95 x 90 x 9.7 | 140 x 134 x 30 | |||
40 x 35 x 5.6 | 63 x 58 x 6.3 | 140 x 135 x 9.7 | ||||
40 x 35 x 9.7 | 63 x 58 x 9.7 | 100 x 94 x 13 | 140 x 135 x 15 | |||
40 x 36 x 10 | 63 x 58 x 10 | 100 x 94 x 20 | ||||
40 x 36.9 x 4 | 100 x 94 x 25 | 145 x 139 x 30 | ||||
65 x 59 x 13 | 100 x 94 x 30 | |||||
45 x 39 x 10 | 65 x 59 x 20 | 100 x 95 x 9.7 | 150 x 144 x 13 | |||
45 x 40 x 5.6 | 65 x 60 x 5.6 | 150 x 144 x 20 | ||||
45 x 41 x 12 | 65 x 60 x 9.7 | 110 x 104 x 13 | 150 x 144 x 30 | |||
45 x 41.9 x 4 | 110 x 104 x 20 | 150 x 144 x 40 | ||||
70 x 64 x 13 | 110 x 104 x 30 | 150 x 145 x 9.7 | ||||
50 x 44 x 10 | 70 x 64 x 20 | 110 x 105 x 9.7 | 150 x 145 x 15 | |||
70 x 65 x 5.6 | 110 x 105 x 15 | |||||
70 x 65 x 9.7 | 155 x 149 x 13 | |||||
70 x 65 x 20 | 115 x 109 x 13 | |||||
115 x 110 x 9.7 | ||||||
OD x ID x H | OD x ID x H | OD x ID x H | ||||
160 x 154 x 13 | 210 x 205 x 9.7 | 300 x 292 x 20 | ||||
160 x 154 x 15 | 210 x 205 x 15 | 300 x 292 x 25 | ||||
160 x 154 x 19.5 | 300 x 292 x 40 | |||||
160 x 154 x 30 | 220 x 212 x 20 | 300 x 295 x 15 | ||||
160 x 154 x 35 | 220 x 212 x 30 | 300 x 295 x 25 | ||||
160 x 154 x 50 | 220 x 214 x 19.5 | |||||
220 x 214 x 30 | 400 x 392 x 30 | |||||
160 x 155 x 9.7 | 220 x 215 x 9.7 | |||||
160 x 155 x 15 | 220 x 215 x 15 | |||||
170 x 160 x 20 | 230 x 225 x 15 | |||||
170 x 164 x 19.5 | ||||||
170 x 164 x 20 | 240 x 232 x 25 | |||||
170 x 164 x 30 | 240 x 232 x 40 | |||||
170 x 165 x 9.7 | 240 x 235 x 9.7 | |||||
170 x 165 x 15 | 240 x 235 x 15 | |||||
180 x 172 x 40 | 250 x 242 x 20 | |||||
180 x 174 x 13 | 250 x 242 x 25 | |||||
180 x 174 x 19.5 | 250 x 242 x 40 | |||||
180 x 174 x 30 | 250 x 244 x 19.5 | |||||
180 x 175 x 9.7 | 250 x 244 x 50 | |||||
180 x 175 x 15 | ||||||
250 x 245 x 9.7 | ||||||
190 x 184 x 25 | 250 x 245 x 15 | |||||
190 x 184 x 30 | ||||||
190 x 185 x 9.7 | 260 x 255 x 9.7 | |||||
190 x 185 x 15 | 260 x 255 x 15 | |||||
200 x 192 x 25 | 270 x 262 x 25 | |||||
200 x 194 x 20 | 270 x 262 x 30 | |||||
200 x 194 x 30 | ||||||
200 x 194 x 50 | 280 x 272 x 25 | |||||
280 x 275 x 15 | ||||||
200 x 195 x 9.7 | 280 x 275 x 25 | |||||
200 x 195 x 15 | ||||||
200 x 195 x 20 |
Rod guide rings
ID x OD x H | ID x OD x H | ID x OD x H | ID x OD x H | |||
12 x 15 x 6.3 | 30 x 33.1 x 4 | 45 x 49 x 15 | 65 x 70 x 9.7 | |||
12 x 15.1 x4 | 30 x 34 x 10 | 45 x 50 x 5.6 | 65 x 71 x 13 | |||
30 x 35 x 5.6 | 45 x 50 x 9.7 | 65 x 71 x 20 | ||||
14 x 17.1 x 4 | 45 x 51 x 13 | 65 x 71 x 40 | ||||
32 x 35 x 5.6 | 45 x 51 x 20 | |||||
15 x 18.1 x 4 | 32 x 35.1 x 4.2 | 45 x 51 x 40 | 70 x 75 x 9.7 | |||
32 x 36 x 10 | 70 x 76 x 13 | |||||
16 x 19 x 6 | 32 x 36 x 15 | 50 x 55 x 5.6 | 70 x 76 x 20 | |||
16 x 19.1 x 4 | 32 x 36 x 20 | 50 x 55 x 9.7 | 70 x 76 x 30 | |||
16 x 20 x 10 | 50 x 55 x 15 | 70 x 76 x 40 | ||||
32 x 37 x 5.6 | 50 x 56 x 13 | 70 x 76 x 50 | ||||
18 x 21.1 x 4 | 32 x 37 x 9.7 | 50 x 56 x 20 | ||||
32 x 38 x 10 | 50 x 56 x 30 | 75 x 80 x 9.7 | ||||
20 x 23 x 10 | 75 x 81 x 13 | |||||
20 x 23.1 x4 | 35 x 38 x 10 | 55 x 60 x 5.6 | 75 x 81 x 20 | |||
20 x 24 x 5.6 | 35 x 39 x 20 | 55 x 60 x 9.7 | 75 x 81 x 30 | |||
35 x 40 x 5.6 | 75 x 81 x 60 | |||||
22 x 25 x 10 | 35 x 40 x 9.7 | 56 x 61 x 5.6 | ||||
22 x 25.1 x 4 | 35 x 41 x 10 | 56 x 61 x 9.7 | 80 x 85 x 9.7 | |||
56 x 62 x 13 | 80 x 85 x 15 | |||||
25 x 28 x 6 | 36 x 40 x 10 | 56 x 62 x 16 | 80 x 86 x 13 | |||
25 x 28 x 10 | 36 x 40 x 30 | 56 x 62 x 30 | 80 x 86 x 20 | |||
25 x 28 x 20 | 36 x 41 x 5.6 | 56 x 62 x 40 | ||||
25 x 28.1 x 4 | 36 x 41 x 9.7 | 80 x 86 x 25 | ||||
25 x 28.1 x 4.2 | 36 x 42 x 10 | 60 x 65 x 5.6 | 80 x 86 x 30 | |||
60 x 65 x 9.7 | 80 x 86 x 40 | |||||
25 x 29 x 5.6 | 40 x 43 x 5.6 | 60 x 65 x 15 | 80 x 86 x 50 | |||
25 x 29 x 10 | 40 x 44 x 10 | 60 x 66 x 13 | ||||
25 x 29 x 20 | 40 x 44 x 20 | 60 x 66 x 20 | 85 x 90 x 9.7 | |||
25 x 30 x 5.6 | 40 x 44 x 25 | 60 x 66 x 30 | 85 x 90 x 15 | |||
25 x 31 x 10 | 40 x 45 x5.6 | 85 x 91 x 13 | ||||
40 x 45 x 9.7 | 63 x 68 x 5.6 | 85 x 91 x 20 | ||||
28 x 31.1 x 4 | 63 x 68 x 9.7 | 85 x 91 x 25 | ||||
28 x 32 x 10 | 40 x 46 x 10 | 63 x 68 x 15 | ||||
28 x 33 x 5.6 | 40 x 46 x 15 | 63 x 69 x 13 | ||||
28 x 34 x 10 | 40 x 46 x 20 | 63 x 69 x 20 | ||||
40 x 46 x 25 | 63 x 69 x 30 | |||||
ID x OD x H | ID x OD x H | ID x OD x H | ||||
90 x 95 x 9.7 | 125 x 131 x 13 | 180 x 185 x 9.7 | ||||
90 x 95 x 15 | 125 x 131 x 30 | 180 x 185 x 15 | ||||
90 x 96 x 13 | 125 x 131 x 40 | 180 x 186 x 19.5 | ||||
90 x 96 x 20 | 125 x 131 x 50 | |||||
90 x 96 x 30 | 195 x 203 x 25 | |||||
90 x 96 x 40 | 125 x 133 x 20 | |||||
125 x 133 x 30 | 200 x 205 x 15 | |||||
95 x 100 x 9.7 | 125 x 133 x 45 | 200 x 205 x 25 | ||||
95 x 100 x 15 | 125 x 133 x 60 | |||||
220 x 218 x 25 | ||||||
100 x 105 x 9.7 | 127 x 133 x 13 | |||||
100 x 105 x 15 | 220 x 225 x 15 | |||||
130 x 135 x 9.7 | 220 x 225 x 25 | |||||
100 x 106 x 13 | 130 x 135 x 15 | 220 x 228 x 25 | ||||
100 x 106 x 20 | ||||||
100 x 106 x 25 | 135 x 141 x 90 | 235 x 243 x 30 | ||||
100 x 106 x 30 | ||||||
100 x 106 x 40 | 140 x 145 x 9.7 | 250 x 255 x 15 | ||||
100 x 106 x 50 | 140 x 145 x 15 | 250 x 255 x 25 | ||||
105 x 111 x 20 | 140 x 146 x 13 | 255 x 263 x 25 | ||||
140 x 146 x 20 | ||||||
110 x 115 x 9.7 | 140 x 146 x 25 | 264 x 272 x 24 | ||||
110 x 115 x 15 | 140 x 146 x 40 | |||||
110 x 116 x 13 | 140 x148 x 20 | 305 x 313 x 25 | ||||
110 x 116 x 20 | ||||||
110 x 116 x 30 | 150 x 155 x 9.7 | 365 x 373 x 35 | ||||
150 x 155 x 15 | ||||||
115 x 121 x 20 | 150 x 156 x 19.5 | |||||
150 x 156 x 30 | ||||||
120 x 125 x 9.7 | 150 x 158 x 20 | |||||
120 x 125 x 15 | ||||||
120 x 126 x 40 | 160 x 165 x 9.7 | |||||
120 x 126 x 50 | 160 x 165 x 15 | |||||
160 x 166 x 30 | ||||||
125 x 130 x 9.7 | 160 x 168 x 30 | |||||
125 x 130 x 15 | 160 x 168 x 40 |
Looking forward to the future, we will closely follow the development of the industry, continue to develop new technologies, actively promote new products, and strive to build a high-end brand of Precision Machining Silicon Carbide Ceramic Mechanical Sealing Dynamic Ring Static Ring. We are moving towards the goal of "responsible, strong and trustworthy", striving to build a new pattern of product supply and providing strong professional support for the company's high-quality development. We will participate in global market competition and abide by global market rules with an objective and rational stance.
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