About Us

About Us


“Whatever you need for milling and turning we offer the best.”

Established in 1984 in Taiwan, Roundtop Machinery Industries Co., Ltd. has become one of the leading machine tool manufacturers around the world. Rountop, or better known as “Johnford”, is a publicly listed company that offers a wide range of machine tools in order to meet every customer’s needs in different types of industries. With over 35 years of experiences in designing and making high-quality as well as precision machine tools, we have been maintaining the leading position in Taiwan through innovation, quality, and flexibility.


In the course of our company history, Rountop has make a great number of achievements ever since the company was established in 1979. However, we do not simply enjoy the status quo, we’ve always set every single day as an opportunity to create greater products for our customers.

  • 2016
    1. HT-35-2SD+C+Y equipped with BMT&VDI twin spindle and twin turret was successfully developed.
    2. ST-80CX+B+C+Y (2m) was successfully developed.
  • 2015
    1. VTC-800/1000ATC+C+multi-station APC were successfully developed.
    2. CAPTO 8 on B axis for heavy duty work was successfully developed.
  • 2014
    1. ST-400B-2D (10m w/ twin turrets) was successfully developed
    2. SDMC-16000x6000x1500+W was successfully developed. This model features a hydrostatic sliding system on X axis, W-axis on cross beam, and 3-meter & 40-ton hydrostatic rotary table
  • 2013
    VMC-1300SH/1600SH equipped with B axis milling heads
    FMBC-160 equipped with a square ram & a hydrostatic rotary table
  • 2012
    “Direct-drive spindle, machinging centers, and their method of manufacturing” was patented in Italy.
  • 2011
    “Rail-type Double Column Multi-Axis Machining Center” was patented in R.O.C.
  • 2010
    “Direct-drive spindle, machining centers, and their method of manufacturing” was patented by China. In October, “Hydrostatic Bearing Safety System” was patented in R.O.C. in a newer version.
  • 2009
    “Direct-drive spindle, machining centers, and their method of manufacturing” was patented in U.S.A. & R.O.C.
  • 2005
    New models of 5-axis and 5-face heads were developed. ERP system was introduced to create an e-management. In addition, we developed a system called PDM in order to conduct an e-management for R&D.
  • 2004
    SDMC-28000-2H was developed.
  • 2003
    ISO 9001 was certified by TUV.
  • 2002
    We became a listed company in Taiwan stock exchange market. And SDMC-11000x2500-2H & SV-33/41/48 were developed.
  • 2001
    Medium-sized DMC was developed and received ISO 9002 by entela.
  • 2000
    US$24,000,000 was invested to construct the third factory to manufacture bigger machines.
  • 1999
    Rountop became a member of GreTai Securities Market of Taipei Exchange.
  • 1998
    5-face & 5-axis double column machining centers were developed. And they are certified by TRL-981102-32.
  • 1997
    SV & ST series were developed.
  • 1996
    Roundtop’s VMC & TC series were awarded “It’s very well made in Taiwan”.
  • 1995
    Received certification of ISO 9002 by DNV.
  • 1992
    Became a public company that also added several production lines which include:
    1. Vertical CNC Lathes Horizontal Machining Centers
    2. Double Column Machining Centers
    3. Flat-Bed CNC Lathes
    4. CNC Forming Machines (Patented)
    5. Screw Cutting CNC Lathes (Patented)
    6. FMS & Automation
  • 1990
    Received the award “A” class registered for CNC lathes from the International Trade Institute, Ministry of Economy. And the factory was also awarded “A” factory by the same institute.
  • 1989
    Factory expansion was made to increase productivity. In addition, Hewlett Packard HP-3000 system was purchased to conduct computerized management.
  • 1984
    The company was established to produce conventional lathes. In the following year, the production of CNC lathes and vertical machining centers began.
Business Philosophy

Over the last 32 years, Roundtop has established a worldwide sales network. We are dedicated to providing customers with the state-of-the-art and high-quality machines. Roundtop has earned a strong reputation in designing and manufacturing of a wide variety of CNC machine tools. We continuously improve the performance and efficiency of our machines, strengthen our quality control system, and offer worldwide after-sales services. Our dedication to the high-performance machine tools as well as to the services of our customers will create a new era of machine tool industry.

    Modern Facilities
    Our modern facilities include an earthquake-proof and computerized 8-story office building that provides a solid foundation for us to manufacture and design the best quality machines. In addition, these modern facilities enable us to deliver a broader range of standard and specialized machines in a short period of time.
    Research and Development
    Strong R & D Team
    With experienced designers and the advanced facilities of our R & D department, we constantly develop new high-performance models. Our R & D engineers employ the latest Finite Element Analysis software to ensure maximum design performance. As a result, we offer a wide selection of products that include: vertical CNC lathes, vertical machining centers, horizontal machining centers, 5-face/5-axis (sliding) double column machining centers, slant bed turning centers, flat-bed CNC lathes, CNC liquid forging machines (patented) and screw cutting CNC lathes (patented).
    Manufacturing Process
    Well Planned Manufacturing Processes Ensure Maximum Dependability and Quality
    Since we regard quality of our products as top priority, we have been paying great attention to optimizing the entire manufacturing process. From casting to precision grinding and from assembly line to final inspection, the whole procedure of production is strictly controlled and monitored. Roundtop machines are both ISO 9001 and CE certified.
    Quality & Service
    We care about our customers
    “Priority service, business perpetuity, and mutual benefit" is our mission statement. Furthermore, we are serious about quality, customer input, and are always aware of market demands. Roundtop's quality control department conducts the final inspection of the newly-made to ensure the best performance of the machines for the customers when delivered. Our quality control personnel are well trained to conduct rigorous inspections by using precision and sophisticated instruments. We deeply believe that quality is the life of our company and customer service is the power that drives our company forward. As a result, we always keep a close contact with our agents and customers in order to solve any problems or have further business.