Reply to technical consultation

Provide design solution

Dispatch engineers domestically/abroad

Handle complaints throughly

600+Service Persons Waiting for You


According to Letone 's service coverage, we have established strong installation engineer teams and divided them into several parts according to the businesses, including building aggregate team, ore processing and industrial milling team. Each team consists of young, middle-aged,and old engineers, fully satisfying business requirement and fulfilling talent cultivation objective.



At Letone, we adhere to the principle of providing each customer specific design solution. Replying on our sales managers' professional knowledge and our services throughout the life cycle of products, we help our customers out of their difficulties in equipment procurement, operation cost accounting, operation management, and after-sales service obtainment, thus improving their profit-making capability and realizing sustainable development of our business.


Design Scheme

Profit Calculation

Operation Management


100+after sales visit team

Integrating R&D, production, distribution and service, SBM attaches great importance to communication with customers. We have established an after-sales visit team consisting of more than 100 persons. On the one hand, they timely solve the problems that our customers encounter; on the other hand, they collect feedback and improvement recommendations from our customers, to correctly orient our development and research.

  • Starting the mode of Internet of Things (IOT) to assist our customers in regular testing and commissioning and to provide technical instructions.
  • Providing services covering the whole life cycle of project to avoid turning backs on customers' needs after projects are put into operation.

100+online service team

Wherever you are, domestically or abroad, you can contact us at any time because SBM has established an online consultation service team consisting of more than 100 persons who provide 365 days×24 hours services for customers.

24h full-time service


50+lecturer team

We provide comprehensive trainings for the technicians of each project. We can also continue to provide support for the technicians during latter project operation. Tracking utilization results of equipment is also the responsibility of the training lecturers to ensure smooth operation of projects. The trainings include:


    Systematic training

  • Installation skills

  • Equipment introduction

  • Trouble judgment & removal

  • Equipment maintenance

  • Equipment operation

  • Core components

  • Spare parts

  • On-site operation

  • Manufacturing techniques

  • Material processing

Complete Procedure--- from Order to Machine Delivery

Division of labor makes us more professional

Letone has established a complete management system from initial consultation, solution design, on-site visit, production preparation and shipment to after-sales feedback, to effectively ensure rapid and timely transmission so that the specialized services and the technical supports can be provided by the correct persons at the correct time.


Four steps ensuring safety and efficiency of machine preparation and shipment

Keeping in mind a Chinese old saying that 'Jade must be cut and chiselled to make it as useful ware' (a person must be disciplined and educated to be a useful citizen), Letone has always been upholding the spirit of craftsman at every stage, especially for the stages of machine preparation and shipment.

Checking order

With the sales contracts, the order tracking clerk checks the model and quantities of production and spare parts for product preparation.

Quality Test before Delivery

Upon completion of the manufacturing of equipment, the quality inspector strictly checks quality of every machine with the checklist.

Check items when packing

Before packaging and shipment, the order tracking clerk the packages items again with the packing list to avoid loss of items.

Packaging and Transport

Professional packaging and modular solution of transportation guarantee the safe and smooth delivery.

Specialty Installation & Commissioning Ensuring Successful Acceptance Of Production Line

Depending on customers' needs, Letone's installation engineers can provide on-site guidance in infrastructure construction, equipment installation and commissioning, as well as trail operation of entire production line. If technical items meet the design criteria, the customer will sign the certificate of conformity.

Installation Preparation Stage

Checking the purchase order; counting the items with the purchase order; checking the dimensions including evaluations of the items with the drawings.

Equipment Installations Stage

Install the main equipment and accessories according to the installation drawing.

Equipment commissioning stage

Check the equipment again. Before putting the project into use, the commissioning is done to ensure the operation to meet production needs.

Project acceptance stage

Provide the certificates of conformity and test reports for main materials as well as the documents of equipment (user's instructions certificate of conformity, etc.)

Quality Warranty

At least One-year Quality Warranty

For its industrial hose, Letone provides a one-years warranty which becomes valid after acceptance inspection of projects. To apply for warranty, the users shall present the invoices and vouchers of warranty.

Complaint Handing System Ensuring Rapid And Proper Handing Of Complaints

For complaints about production line operation from customers, we undertake to complete problem identification and solution offering within 24 hours, and solve the problem within 3/10 days for domestic/foreign customers..

identifying problem
solving problem

Global Service Outlets Remove Your Difficulties Fast

Division of labor makes us more professional

Letone has established a complete management system from initial consultation, solution design, on-site visit, machine preparation and shipment to after-sales feedback, to effectively ensure rapid and timely transmission of information so that the specialized services and technical supports can be provided by the correct persons at the correct time.

Inquiry about service outlets

Why Are We Always Considered as STRONG?

  • Manufacturing strength
    • 80,000m2manufacturing base
    • 3 heavy-duty modernized manufacturing and assembly workshops
    • Nearly 100 sets of domestically advanced large vertical turning lathes and planning machines
  • Processing Ability
    • Ageing process is adopted. Precision tools are utilized.
    • Advanced processes are designed from research&development to quality inspection. Great importance is attached to both standard operations and on-site improvement.
  • Standardized Manufacturing Workshops
    • Running independently
    • High quality kinds of rubber hose manufacturing base.
  • Quality Inspection
    • Precise tools for quality inspection
    • We are dedicated to the development and research of high-end rubber hose , providing you with high-quality products and services.


To provide better services for customers and faster remove the difficulties that customers that customers encounter, Letone has established its own laboratory, Italian Bimal Impulse Test Stand, Mooney viscosity, a moving die rheometer, high and low temperature test box, an ozone test machine, a UV test machine and super high pressure burst test machine,etc. Letone has set up a R&D center for high pressure rubber hose cooperatively with Qingdao University of Science and Technology, with professional team of 36 technicians including 3 professors/doctoral supervisors, 6 senior engineer and technicians.Letone has mastered the full set of core technology for manufacturing hydraulic rubber hose and obtained 9 national invention patents and 23 utility model patents. It has been the main enterprise unit for drafting several technical standards of China rubber hose industry.