LPM Electric Tube Facing Machine (AC, High-Torque) — hero shot

LPM electric tube facer clamped on a stainless tube, Metabo AC drive

LPM electric tube facer from the front — clamping collet and facing head

Tube end faced square and burr-free by the LPM

Batch of stainless tubes faced on the LPM, ready for orbital welding

Large-diameter sanitary tube with a faced end beside the LPM

Stainless steel thick-wall tubes with ends faced square on the LPM

1 / 7

LPM · AC Series ASME BPE 3-A · EHEDG

LPM Electric Tube Facing Machine (AC, High-Torque)

Name: LPM Electric Tube Facing Machine (AC, High-Torque)
Brand: Kedes Machine
SKU: LPM · AC Series

1300 W Metabo-driven benchtop tube facer for sustained production. Constant torque indefinitely, planetary gear reduction on larger models for low-RPM finish on thick-wall sanitary tube. Faces tube Ø 3.17 – 114.3 mm with wall up to 5 mm — the production-shop standard for high-purity tube fabrication.

Tube OD range

Ø 3.17 – 114.3 mm

Wall thickness

0.5 – 5 mm

Motor

1300 W Metabo AC

Use

Benchtop · production

TYPICAL REPLY · 1 WORKING SHIFT (GMT+8)

01 Model Comparison

Pick your size — 5 models in the series.

	LPM-1.0 AC Ø 3.17 – 25.4 mm · 10 kg	LPM-1.5 AC Ø 6 – 38.1 mm · 11 kg	LPM-2.5 AC Ø 9 – 63.5 mm · 13 kg	LPM-3.5 AC Ø 12.7 – 88.9 mm · 35 kg · geared	LPM-4.5 AC Ø 19 – 114.3 mm · 45 kg · geared
Tube OD range	3.17 – 25.4 mm	6 – 38.1 mm	9 – 63.5 mm	12.7 – 88.9 mm	19 – 114.3 mm
Wall thickness	0.5 – 5 mm	0.5 – 5 mm	0.5 – 5 mm	0.5 – 5 mm	0.5 – 5 mm
Cutter speed	420 r/min	420 r/min	420 r/min	150 r/min (geared)	150 r/min (geared)
Motor power	1300 W	1300 W	1300 W	1300 W	1300 W
Net weight	10 kg	11 kg	13 kg	35 kg	45 kg
Standard collets supplied	6.35 / 9.52 / 12.7 / 19.05 / 25.4 mm	9.52 / 12.7 / 19.05 / 25.4 / 38.1 mm	25.4 / 31.8 / 38.1 / 50.8 / 63.5 mm	25.4 / 38.1 / 50.8 / 63.5 / 76.3 mm	On specification
Collet system	Full-contact SS	Full-contact SS	Full-contact SS	Full-contact SS	Full-contact SS
Quote this model

02 Working Principle

Why planetary gear reduction matters on large-OD sanitary tube

Cutter linear speed at the workpiece is RPM × π × diameter. On a small 1/4" tube at 420 RPM, the linear speed is moderate; on a 4.5" tube at the same RPM, linear speed quadruples — exceeding the carbide tooling's optimal Vc and causing premature insert wear and a poor surface finish. The LPM-3.5 AC and LPM-4.5 AC use planetary gear reduction to drop cutter speed to 150 RPM while preserving torque from the 1300 W Metabo motor. This puts the cutting interface back in the optimal Vc window for stainless and Cr-Mo work — sustaining insert life and producing the burr-free surface finish required for ASME BPE orbital welding.

LPM · AC Series working principle diagram

03 Key Features

Built for the job site.

// 01

1300 W Metabo AC — sustained torque indefinitely

Constant torque from grid power; no battery cycling. Sized for batch production where the operator faces tens to hundreds of tubes per shift without thermal cycling or recharging.

// 02

Planetary gear reduction on LPM-3.5 / 4.5

Drops cutter speed to 150 RPM on larger models to keep linear cutting speed in the optimal Vc window for stainless and Cr-Mo. Critical for surface finish on tubes above 2".

// 03

Full-contact stainless collets

Annular full-circumference grip. No witness marks on electropolished (EP) or bright-annealed (BA) sanitary tubing per ASME BPE §SF requirements.

// 04

Covers 1/8" to 4.5" OD

Four sizes span the full sanitary tube range used in pharma, food and semiconductor fabrication. Single-supplier solution for a complete tube-prep cell.

// 05

Cold cut — burr-free for orbital welding

Carbide insert at controlled feed produces oxide-free, burr-free end ready for orbital welding without secondary preparation. Preserves stainless passive layer.

// 06

Benchtop stability (10 – 45 kg)

Heavier build (35 / 45 kg on LPM-3.5 / 4.5) provides bench rigidity for long production runs. The pipe comes to the machine — opposite workflow to the LPM cordless variant.

04 Industry Applications

Where this series earns its keep.

Pharmaceutical & bio-process tube fab

High-volume facing of stainless WFI, CIP and process tubing in batch production. Geared LPM-4.5 AC for larger 3" and 4" fermenter and storage-vessel piping.

See pharmaceutical & bio-process tube fab solutions

Food, dairy & brewery production

Sanitary stainless tube prep for dairy CIP loops, brewery wort lines and food-grade process. Constant torque handles long fab runs typical of new-plant builds.

See food, dairy & brewery production solutions

General stainless tube prefab

Industrial stainless tube prefab for chemical, gas-handling and general process piping where AC bench mounting is preferred over portable cordless operation.

See general stainless tube prefab solutions

06 FAQ

Common questions about the LPM · AC Series.

Can't find your answer?

My tube size is not in the collet list — can the machine still face it?

Yes. The sizes listed are the five collets that ship as standard with each machine. Any diameter up to that model's maximum can be faced — each tube size simply needs its own dedicated collet. A 1" tube runs on the LPM-1.0 AC because it is inside the 25.4 mm limit; a non-standard size anywhere below the limit is a collet order, not a different machine. Smaller optional collets are available too: 3.17 mm for the LPM-1.0 AC, 6.35 mm for the LPM-1.5 AC, and 9.52 / 12.7 / 19.05 mm for the larger bodies. Send the list of sizes you actually run and we will specify the set.

AC or DC LPM — which should I order?

Choose AC for benchtop batch production where the tube comes to the operator and the work duty justifies a fixed station. AC handles larger OD (up to 4.5" vs DC's 2.5") and thicker wall (5 mm vs 3 mm) with sustained torque. Choose DC for cordless install work in cleanrooms and field positions where AC routing is restricted.

When do I need the geared LPM-3.5 or LPM-4.5 specifically?

For tubes above 2" OD. At 420 RPM the linear cutting speed on a 3" or 4" tube exceeds the optimal Vc for stainless and Cr-Mo — destroying carbide insert life and producing a poor surface finish. The geared 150 RPM cutter speed restores correct linear cutting conditions.

Does it work on Cr-Mo and Inconel as well as stainless?

Yes — match the carbide insert grade to the material (M-grade for stainless and Inconel; S-grade for superalloys). The geared variants are particularly suited to Cr-Mo and Inconel where lower cutter RPM is essential for insert life.

Is the face finish compatible with orbital welding fit-up?

Yes — Ra typically < 3.2 μm directly off the tool. Meets the fit-up tolerance of all major orbital welding heads (Polysoude, Arc Machines, Magnatech) without secondary preparation.

07 Related Series

Other pipe facing machines.

All pipe facing machines

Next step

Get a quote within 24 hours.

Send us your spec sheet, pipe schedule, or drawing — our engineers reply with pricing, lead time, and recommended models.

01Send specs & drawings
02Receive quote within 24h
03Confirm & manufacture

Chat on WhatsApp