MAF130E II Boring Machine with a 130mm Boring Spindle - 2019

Case Study 30
Industrial Engineering Exercise: Productivity Analysis of a Newly Introduced Machine
Exercise: Productivity Analysis of MAF130E II Boring Machine with a 130mm Boring Spindle
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21 May 2020
Mitsubishi Heavy Industries Machine Tool

Tokyo, July 24, 2019 - Mitsubishi Heavy Industries Machine Tool Co., Ltd., a group company of Mitsubishi Heavy Industries, Ltd. (MHI) based in Ritto, Shiga Prefecture, has developed the new MAF-E II series of table-type horizontal boring mills (HBM) offering stability in high processing accuracy and productivity. The first in the series is the MAF130E II model with a 130mm boring spindle. To minimize any decline in processing accuracy from thermal displacement during continuous operation over long hours, the series utilizes thermostabilized columns to prevent deformation due to variations in temperature, and a boring spindle unit with an enhanced spindle cooling mechanism. In addition, the high-power, high-torque boring spindle provides improved productivity. The series will be showcased at the Machine Tool Fair, held at MHI Machine Tool's head office factory on July 25-26, marking the launch of full-fledged sales.

The MAF-E II series, while following the strengths of the MAF-E table-type HBM models launched in 2012 (details given below), was developed to meet needs for more high-precision and high-efficiency processing of large components. In particular, considering the anticipated demand going forward for greater precision in core parts for industrial machinery and energy-related components, the capability of the MAF-E II series to suppress thermal deformation will provide an advantage.

Thermostabilized columns are columns into which a temperature control medium with a high specific heat capacity has been inserted, suppressing column deformation caused by fluctuations in the ambient temperature. The boring spindle cooling mechanism, by cooling the bearing housing and gear box, minimizes thermal displacement during spindle rotation. In addition, the spindle motor output 37kW and torque(cont./30min.) 2,953/3,643N.m (newton meters) is the highest in class, allowing for high cutting performance under a broad range of conditions. Further, the sliding surface utilizes a wide box guideway, providing greater rigidity, stable precision, and high productivity.

The MAF-E II series will be launched at the Machine Tool Fair, which will also feature a wide variety of the products offered by MHI Machine Tool, including large machining tools and precision processing machines, as well as the powder Directed Energy Deposition (DED)-type metal 3D additive manufacturing machine (metal 3D printer) and monitoring system. These machines offer optimal solutions to meet all types of processing needs.

MHI Machine Tool, building on the momentum from the market launch of the MAF130E II series, will propose a machining process in combination with the MVR series of double-column 5-face milling machines, aiming for manufacturing that contributes to the productivity of its clients. 

https://www.mhi.com/news/story/190724.html

https://www.bloomberg.com/press-releases/2019-07-24/mhi-machine-tool-launches-the-new-maf-e-ii-series-of-table-type

https://www.mhi-machinetool.com/en/products/detail/maf-e2.html

MAF-E Series Horizontal Boring Mills

December 13, 2012

Mitsubishi Heavy Industries Ltd. (MHI) has developed a new series of table-type horizontal boring mills, known as the "MAF-E Series,"
The company today launched two models: the MAF130E and MAF150E featuring boring spindle diameters of 130 and 150mm, respectively. Both machines have an 800mm extendable spindle stroke.
The MAF-E Series, being aimed at the medium-size workpiece machining market, is designed to fill the gap between the company's MAF-C Series, which are floor-type horizontal boring machines that provide outstanding performance and flexibility for cutting large-size workpieces, and its existing MHT Series, table-type horizontal boring machines featuring superior operability suited to small workpiece machining. The MAF-E Series was developed to offer the advantages of both of those system lineups in order to realize economically efficient machining of medium-size workpieces, a task that has conventionally been performed using costly floor-type machines.
By increasing the main spindle stroke extension upto 800mm, the new MAF-E Series units enable deep boring not possible with convertional machines.

Anticipated applications include structural components of heavy-duty vehicles such as construction machinery and trucks: for example, hydraulic excavator mainframes, reduction gearboxes, and major components of extruders and hydraulic presses.
https://www.ctemag.com/products/maf-e-series-horizontal-boring-mills

Exercise for Industrial Engineers

Compare the application and productivity of MAF 130E-II (2019) and MAF 130E (2012). Compare them with boring machines of other companies for similar application.

Do a search for relevant information and write to the companies for required information.

You can look at this collection of information on horizontal boring for some additional information
Horizontal Boring Machines - A Survey

HEC Horizontal Boring Machine

CNC Horizontal Boring Machine specification:
 Boring spindle diameter 100 mm
 Max spindle travel 900mm
 Head stock vertical travel (Y-axis) 1120 mm
 Moving column type design
 Highly rigid construction
 Automatic clamping/unclamping of ISO-60 tooling facility
 Circulating lubrication system for H/S & Feed gear box.

http://hecltd.com/horizontal-boring-machine.php