Audited Supplier
(1) Qingdao Micro Precision Machinery Co., Ltd. design and manufacture heavy duty hydraulic cylinders that covering the following fields:
Ø Forklift Cylinder
Ø Derrick Cylinder
Ø Bulldozer Cylinder
Ø Port Crane Cylinder
Ø Two-head excavator Cylinder
Ø Small / Large Excavator Cylinder
Ø Injection Molding Machine Cylinder
customers,but also we could make a design according to customer's requirements.If you
require our engineer to make a design, please advise us the following specification:
1. Rated pressure
2. Working pressure
3. Test pressure
4. Working condition and environment ,for example ,temperature ,working frequency
5. Pulling force ,and return stroke force
6. Pulling and return speed
7. Assembly size
8. Seal ring requirements .For example , brand ,seal material etc .
9. Tube and piston rod raw material requirements
10. Piston rod surface treatment requirements, for example chromating film thickness ,
Surface hardness etc .
11. Painting and other spare parts requirements.Large Excavator Hydraulic Cylinder
| Excavator Hydraulic Cylinder | Bore Diameter(mm) | Rod Diameter(mm) | Stroke(mm) | Supporting models(T) |
| Minimum | 50 | 30 | 100 | 1.5 |
| Maximum | 230 | 150 | 2500 | 50 |
| D | d | Do | F | G | P |
| 90 | 60,65 | 108 | 148 | 143 | 108 |
| 95 | 65,70 | 114 | 148 | 146 | 108 |
| 100 | 65,70 | 120 | 163 | 149 | 112 |
| 105 | 65,70,75 | 125 | 165 | 152 | 112 |
| 110 | 70,75,80 | 130 | 176 | 152 | 118 |
| 115 | 70,75,80 | 136 | 176 | 152 | 118 |
| 120 | 75,80,85 | 144 | 186 | 152 | 124 |
| 125 | 80,85 | 149 | 186 | 154 | 127 |
| 130 | 85,90,95 | 155 | 193 | 166 | 133 |
| 135 | 90,95,100 | 160 | 208 | 166 | 133 |
| 140 | 90,95,100 | 166 | 208 | 171 | 133 |
| 145 | 95,100,105 | 172 | 226 | 171 | 133 |
| 150 | 100,105,110 | 178 | 237 | 178 | 138 |
| 155 | 105,110 | 184 | 240 | 178 | 138 |
| 160 | 110,115,120 | 192 | 244 | 178 | 141 |
| 170 | 115,120 | 202 | 265 | 185 | 144 |
| 175 | 115,120 | 210 | 269 | 185 | 150 |
| 180 | 120,130 | 216 | 280 | 195 | 160 |
| 190 | 130,140 | 226 | 295 | 205 | 160 |
| 200 | 130,140 | 243 | 317 | 212 | 187 |
| 210 | 140,150 | 249 | 335 | 234 | 187 |
1. Why choose our cylinder advantages?
(1) Rod are chrome plated.
(2) Tubes are quenched and tempered.
(3) Tube inner hole goes through deep hole boring machine processing.Surface roughness is 0.4Ra and circular degree is 0.025.
(4) Good quality yet lower price.
2. Are you a manufacturer or trading company?
We are an integration of industry and trade, our factory has 18 years of manufacturing experience, we have a professional design and production team.
3. Do your products come with a warranty?
Yes, we have1 year warranty. In this year, if the quality problem we will free repair for you.
4. What about the quality feedback of your products?
We have never received even once quality complaint for many years. And we have established long-term friendly cooperative relationships with our customers.
5. Could you help me to install or recommend what kind of hydraulic cylinder or power pack should I use for specific machine?
Yes, we have an experienced engineer design team ready to assist you. If you don't know which hydraulic cylinder should be used for your machine, please contact us and our engineers will design the exact product that meets your needs.
6. What is the delivery time?
Within 15 days for samples.
25-30 days for bulk production, which is depend on quality, production process and so on.
7. What is your main payment term?
T/T, L/C, either is available.
