PREP 4 Portable Flange Facer

TAG PREP 4 Portable Flange Facer

FACING DIA. RANGE: 1.18 – 7″ / 30 – 180 mm
CLAMPING RANGE: 1 – 4″ / 23 – 112 mm

The PREP 4 flange facing machine is a highly versatile and precision-engineered solution designed for accurate flange facing and resurfacing applications. Building on the proven performance of the PREP 4 machine body, this machine delivers exceptional surface finish quality using a phonographic feed system. Available in pneumatic, electric, or battery (110V or 220V) drive options, the PREP 4 flange facing machine combines power, portability, and adaptability for both on-site and workshop environments.

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Specifications

DESCRIPTION	PNEUMATIC – Standard	PNEUMATIC – Elbow	ELECTRIC – Standard	ELECTRIC – Elbow	BATTERY – Standard	BATTERY – Elbow
Version	Standard	Elbow	Standard	Elbow	Standard	Elbow
Part Number	TP4PFFP	TP4PFFPE	TP4E110FFP / TP4E220FFP	TP4E110FFPE / TP4E220FFPE	TP4B110FFP/ TP4B220FFP	TP4B110FFPE/ TP4B220FFPE
Working flange range (ID)	1.18 – 7″ / 30 – 180 mm	1.18 – 7″ / 30 – 180 mm	1.18 – 7″ / 30 – 180 mm	1.18 – 7″ / 30 – 180 mm	1.18 – 7″ / 30 – 180 mm	1.18 – 7″ / 30 – 180 mm
Clamping range (ID)	1 – 4″ / 23 – 112 mm	1.5 – 4″ / 38 – 111 mm	1 – 4″ / 23 – 112 mm	1.5 – 4″ / 38 – 11 mm	1 – 4″ / 23 – 112 mm	1.5 – 4″ / 38 – 11 mm
Idle speed	5 – 100 rpm	5 – 100 rpm	5 – 82 rpm	5 – 82 rpm	23 / 37 / 50 rpm	23 / 37 / 50 rpm
Torque	176 N m	176 N m	152 N m	152 N m	140 N m	140 N m
Length of axial feed	5 mm	5 mm	5 mm	5 mm	5 mm	5 mm
Max operating temperature	55 °C	55 °C	55 °C	55 °C	55 °C	55 °C
Max acoustic radiation	75 dB	75 dB	75 dB	75 dB	75 dB	75 dB
Pneumatic motor power	1.35 hp	1.35 hp	n/a	n/a	n/a	n/a
Air consumption	36 cfm / 1020 l/min.	36 cfm / 1020 l/min.	n/a	n/a	n/a	n/a
Air working pressure	90 psi / 6.5 bar	90 psi / 6.5 bar	n/a	n/a	n/a	n/a
Air hose connection	1/2″	1/2″	n/a	n/a	n/a	n/a
Electric motor power	n/a	n/a	1300 watt	1300 watt	800 watt	800 watt
Voltage	n/a	n/a	110 or 220 volt	110 or 220 volt	charger 110 or 220 volt	charger 110 or 220 volt
Frequency	n/a	n/a	50 / 60 Hz	50 / 60 Hz	charger 50 / 60 Hz	charger 50 / 60 Hz
Surface finish options	63 – 250 rms	63 – 250 rms	63 – 250 rms	63 – 250 rms	63 – 250 rms	63 – 250 rms
Compliance	ASME B16.5, CE	ASME B16.5, CE	ASME B16.5, CE	ASME B16.5, CE	ASME B16.5, CE	ASME B16.5, CE
Unit weight	11.9 kg / 26.2 lbs	11.9 kg / 26.2 lbs	12.9 kg / 28.4 lbs	12.9 kg / 28.4 lbs	13.6 kg / 29.9 lbs	13.6 kg / 29.9 lbs
Packing dimensions	625 x 633 x 203 mm	625 x 633 x 203 mm	625 x 633 x 203 mm	625 x 633 x 203 mm	625 x 633 x 203 mm	625 x 633 x 203 mm
Packing weight	31.4 kg / 69.2 lbs	31.4 kg / 69.2 lbs	32.4 kg / 71.4 lbs	32.4 kg / 71.4 lbs	33.1 kg / 72.9 lbs	33.1 kg / 72.9 lbs

Our group policy is one of continuous improvement. Products and data tables are subject to change and may vary from those illustrated.

*In accordance with UN3481 regulations governing the transport of lithium batteries, this machine cannot be shipped by air. Authorized transport modes: road and sea only. Any request for air shipment cannot be accommodated. If required, alternative models without battery or charger, compliant with air transport regulations, can be offered: PART NO. TP4BFFP (standard) / TP4BFFPE (elbow).

Product Advantages

Engineered to handle flat face and raised face flanges, as well as spot facing operations, the machine delivers consistent, repeatable results across a wide range of diameters and materials, including carbon steel, stainless steel, and exotic alloys. Its precision feed control system features three interchangeable feed screws, enabling operators to achieve smooth, stock, and rough surface finishes from 63 to 250 RMS to meet critical gasket sealing requirements.

The robust yet compact design makes it ideal for flange repair, pipeline and valve maintenance, and workshop flange preparation across industries including oil & gas, petrochemical, power generation, marine, and water treatment. Its heavy-duty construction ensures reliable performance in demanding environments, while its portability allows for efficient on-site deployment.

The PREP 4 Flange Facing Machine utilizes an internal collet clamping system for secure, accurate mounting, ensuring stability throughout machining. Combined with a range of standard and custom tooling options, it provides maximum flexibility for a wide variety of flange facing applications.

Additionally, TAG offers this system as a flange facing conversion kit, allowing existing PREP 4 pipe bevelling machines to be easily adapted for flange facing operations, further enhancing the machine’s versatility and value.