12" On Site Flange Facing Machine Powerful Externally Mounted High Precision

ON-SITE MACHINING CASE STUDY

As illustrated in the project image below, the MT field machining team recently completed a successful on-site flange repair using the FE12 Flange Facer. In pressure vessel and chemical plant installations, flange sealing faces often suffer distortion from welding or damage from handling. Such imperfections pose a risk to the integrity of the flange seal.

Using the FE12, the MT team re-machined the flange sealing face in place, restoring its integrity and meeting ASME sealing standards. The FE12 excels at flanges under 12 inches, thanks to its externally mounted design, easy alignment, and center-through tool post. Compared to internal-mount systems, the OD-mounted configuration offers superior stability—an essential advantage in precision machining.

PRODUCT INTRODUCTION

The FE12 On-Site Flange Facing Machine is a compact and powerful externally mounted tool designed to recondition damaged or corroded flange sealing surfaces directly at the job site. Whether you're in the oil & gas industry, petrochemical plants, power generation, or offshore operations, the FE12 offers fast and accurate flange repairs without disassembling the piping system. With a machining diameter of 0–12 inches (0–305 mm), it is especially suited for small-to-medium flanges where accessibility and setup time are critical.

Engineered for on-site machining professionals, the FE12 can process various flange profiles such as flat face (FF), raised face (RF), ring-type joint (RTJ), tongue & groove, and more. Its quick setup and rigid structure make it ideal for high-precision flange resurfacing, even in vertical or overhead positions.

MACHINE FEATURES

High-Precision Finishing System

Equipped with preloaded high-accuracy bearings and dual feed rates, the FE12 delivers smooth or spiral (phonographic) finishes in compliance with ASME B16.5 standards.

Externally Mounted, Compact Design

The FE12 installs around the flange’s outer diameter (OD), making it ideal for on-site flange facing in tight, confined, or elevated locations.

Dual Power Options for Flexibility

Choose between a pneumatic motor for explosive environments or a electric servo motor for enhanced control and torque during shop or plant maintenance.

Enhanced Portability

Lightweight modular structure and rugged transport case allow easy carrying to remote sites, reducing labor and minimizing downtime.

TECHNIAL SPECIFICATIONS

HOW TO CHOOSE THE RIGHT POWER OPTION FOR ON-SITE FLANGE FACING

Pneumatic Model (FE12P)

The FE12P is driven by a 1.0 kW pneumatic motor, consuming 1.3 m³/min @ 0.6 Mpa. This model is ideal for hazardous or ATEX-compliant environments, ensuring safe operation in explosive areas.

Note: Requires a stable compressed air source. If the site is far from the compressor, you may experience pressure drops or insufficient flow, affecting performance. An independent air compressor is recommended in such cases.

Electric Model (FE12E)

Powered by a 1.0 kW servo motor, the FE12E is the preferred choice for most customers, especially in workshops, refineries, and plant shutdowns. The servo motor offers stepless speed control and constant torque output, ideal for both rough and fine facing. A remote control pendant allows easy operation, while real-time speed feedback enhances control and safety.

MT Portable Machine was established in 2014 and is headquartered in Wuxi, Jiangsu Province, China. With decades of expertise in the field of portable machine tools, we have successfully

expanded our products and services to customers worldwide. What began as a small team of just three people has steadily grown into a dynamic organization of 100 skilled professionals,

dedicated to delivering precise and efficient solutions for on-site machining. Our team continues to drive innovation and remains committed to providing customers with expert guidance

and reliable service at every stage.

We are a specialized manufacturer of portable machine tools, focusing on pipe cutting and beveling machines, on-site portable equipment, and customized special-purpose machines designed to meet unique customer needs.

At MT Portable Machine, we are dedicated to offering high-quality products and cost-effective on-site machining solutions that are delivered on time and within budget. Backed by years of hands-on experience and technical know-how, our team provides top-level service and personalized solutions tailored to each project. We pride ourselves on being more than just a supplier—we are a trusted partner to our clients, working with transparency, integrity, and mutual respect.

Our commitment goes beyond production—we also provide comprehensive after-sales service to ensure long-term satisfaction for our customers and distributors. When you receive our equipment, you’ll be impressed by the exceptional value it offers. The durability and long service life of our products bring lasting benefits to your operations.

Our machines are widely applied across a range of industries, including boiler manufacturing, natural gas, pressure vessels, petrochemical, oil & gas, nuclear energy, wind power, power generation, shipbuilding and repair, offshore projects, food processing, and medical equipment.

Have a question about our products or services? Feel free to contact us—we're always happy to hear from you!