We constantly develop new Phenolic Polyester Wear Ring, Rod Step Seals, Composite Material Guide Rings, constantly improve product performance and continuously improve product quality. We integrate the concept of social responsibility into our corporate strategy and daily operations to achieve the organic integration of social responsibility and business operation. Honesty to customers, employees, and society are our important intangible assets, therefore, we insist on winning customers with integrity, and gaining customers' trust and respect with sincerity. We expect to cooperate with you to develop a larger market.
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 |
Over the years, we have been adhering to the business philosophy of 'customer first, forge ahead' to provide high-quality products and services to new and old customers, scientifically integrate resources, strengthen corporate management and enhance corporate core competitiveness. Our high-quality BS Type Rod Seals PU Polyurethane Hydraulic U-Ring with Support Edge and outstanding services have been recognized by the majority of users. After years of development, our comprehensive strength has been greatly enhanced and our market competitiveness has been significantly improved. Our company always follows the development principle of "energy conservation and environmental protection, technological innovation", and puts the concept of "comprehensive utilization of resources and environmental protection" into the product structure adjustment and industry chain extension.
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