Products
Dotrum
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Beam hoist
Beam hoist is one of engineering gantry cranes specially desee details +
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Under Running Overhead Crane
Under running overhead crane is referred to as suspension ovsee details +
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Double Girder Bridge Crane
Double girder bridge crane with winch hoist lifting mechanissee details +
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Bulk clamshell Bridge Crane
Bulk clamshell Bridge Cranesee details +
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Casting Overhead Bridge Crane
The foundry overhead bridge crane is the main equipment in tsee details +
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Electromagnetic Bridge Crane
Dotrum magnetic overhead bridge crane is mainly used for plasee details +
WHY CHOOSE US
Dotrum
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Tailor-made Design,
Exclusive CustomizationWe are not only suppliers of equipment, also masters of material handling solutions. After understanding the requirements of the site and customers in detail, we will develop appropriate solutions for different materials and different use environments. -
Quality Products,
Safety GuaranteeMore than two-decade years of large-scale lifting industry experience, strict procedures from engineering design, equipment manufacturing, installation and commissioning, and after-sales service. The customers' return rate has reached 85%. -
Self-Produced and Self-Sold,
Competitive ProductsWith more than 20 national patents, for the same model we have the best specification and price , guaranteed quality and the greatest cost savings. One-stop service for our respentful customer. -
Thoughtful Service,
Peace of MindThe professional technical service team will follow up the production progress of the order, deliver it on time, install and debug on site, and provide operation training. Regular customer follow-up, no worries after sale.
Thanks for your long-term support
Dotrum
About us
Dotrum
Henan Dotrum Machinery Co., Ltd.
Henan Dotrum Machinery Co., Ltd. is a reliable crane supplier for global market. The main products are CD1 MD1 type 0.5t-16t electric hoist, HC type 16t-32t electric hoist, 1t-20t electric single beam overhead crane, 5t-320t electric double beam overhead crane, 5t-20t grab overhead crane, 5t-50/10t electromagnetic crane, 5t-160t metallurgical bridge crane, 5t-75t explosion-proof bridge crane, 5t-300t various gantry cranes, and 50t container stacking cranes, portal cranes, etc.
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1995
Established in 1995
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1000+
Serving more than 1,000 companies
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20+
With more than 20 national patents
Service Process
Dotrum
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01
Select product
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02
Project review
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03
Sign contract
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04
Arrange payment
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05
Goods production
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06
On-time delivery
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07
Installation guide
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08
Win-win cooperation
News & Events
Dotrum
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2021-03-06How to prevent the crane from derailing?The reasons for crane derailmentWhen the crane is running, if the wheels are subjected to lateral force, the two sides are not synchronized, or the elastic recoil when suddenly unl -
2020-09-17Crane troubleshooting (metal structure part)1. Fatigue cracks in the main beam web or coverFailure reason: long-term overload useElimination method: If the crack is not larger than 0.1mm, it can be flattened with a grinding -
2020-09-16Crane failure and troubleshooting (control and wiring part)1. When the knife switch of the protection box is closed, the fuse of the control circuit is burned. Fault and cause status:Fault reason: this phase in the control loop is grounded -
2020-09-12Crane failure and troubleshooting (electrical equipment part)AC motor failure and cause status:1. The entire motor overheats evenlyThe cause of the failure: (1) The electric connection rate (JC%) increased, causing overload (2) Working under -
2020-09-12Crane failure and troubleshooting (components)Rolling bearing failure and cause status:1. The temperature is too high. 2. Abnormal sound (continue to mute) 3. Metal grinding sound. 4. Filing or impact soundCauses of failure: 1 -
2020-09-12Crane failure and troubleshooting (parts)Forging hook failure and damage status:1. Fatigue cracks appear on the hook surface. 2. Wear and tear on openings and dangerous sections. 3. Plastic deformation occurs in the openi -
2020-08-25wireless remote controlWireless remote control technology plays a very important role in reducing labor intensity, improving production efficiency, and improving operational safety. In terms of operating -
2020-08-13Classification of cranesAccording to their functions and structural characteristics, hoisting machinery can be roughly divided into the following 4 categories.1. Light and small lifting equipmentLightweig
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Dotrum Machinery is a reliable crane supplier for global market. The main products are CD1 MD1 type 0.5t-16t electric hoist, HC type 16t-32t electric hoist, 1t-20t electric single beam overhead crane, 5t-320t electric double beam overhead crane, -
main products
Others >
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contact us
Mobile：(86)18638114511
E-mail：dotrum@foxmail.com
Add: Building No.2, Henan Yigu E-commerce industrial park, Huiji district, Zhengzhou city, Henan province, China
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