Split-Frame Clamshell Pipe Cutting & Beveling Machine — hero shot

Split-frame clamshell open-ring body with drive motor and radial tool slides

Split-frame clamshell with hydraulic power unit and control panel

Split-frame clamshell clamped on large-diameter pipe with power-pack and PLC control

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OC Series · Split-Frame ASME B16.25 API 1104 EN ISO 9692-1

Split-Frame Clamshell Pipe Cutting & Beveling Machine

Name: Split-Frame Clamshell Pipe Cutting & Beveling Machine
Brand: Kedes Machine
SKU: OC Series · Split-Frame

OD-mounted split-frame (clamshell) cold cutter and beveler for in-situ pipe Ø 25 – 1230 mm (3/4" – 48"), 20 sizes. Light and compact with a small radial footprint — the two-piece frame closes around installed pipe and parts and bevels it in a single pass, with no heat-affected zone. Electric (OCE) or pneumatic (OCP) drive for wall ≤ 35 mm; hydraulic (OCH) for heavy wall up to 150 mm and pipe beyond Ø 1230 mm.

Pipe OD range

Ø 25 – 1230 mm (3/4" – 48") · OCH above 1230 mm

Wall thickness

≤ 35 mm (OCE / OCP) · ≤ 150 mm (OCH)

Operations

Cut · Bevel · Compound bevel · Bore

Drive options

OCE electric · OCP pneumatic · OCH hydraulic

TYPICAL REPLY · 1 WORKING SHIFT (GMT+8)

01 Model Comparison

Pick your size — 3 models in the series.

	OCE Electric · AC motor	OCP Pneumatic · vane / piston motor	OCH Hydraulic drive
Power source	AC high-performance motor	Air motor (vane / piston)	Hydraulic power-pack driven
Pipe OD range	Ø 25 – 1230 mm (20 sizes)	Ø 25 – 1230 mm (20 sizes)	Up to and above Ø 1230 mm
Wall thickness	≤ 35 mm	≤ 35 mm	≤ 150 mm
Rated power	1.8 – 3.0 kW (by size)	— (air-driven)	Power-pack 7.5 kW (≤ Ø 610) · 11 kW (Ø 610 – 1230) · 15 kW (> Ø 1230)
Supply voltage	220 V	—	380 V 3-phase 5-wire (custom)
Frequency	50 – 60 Hz	—	50 Hz
Current / air / hydraulic	8 – 10 A working current	0.6 – 0.8 MPa · 1500 – 2000 L/min air	10 MPa rated · 5 – 45 L/min (infinitely variable)
Control	On-machine	On-machine	50 m remote · PLC
Best for	Indoor & general field	Hazardous areas (refinery, offshore)	Heavy wall 35 – 150 mm · pipe above Ø 1230 mm
Quote this model

02 Size Range · OCE / OCP / OCH

21 sizes cover the working range.

Every size is built in electric (OCE), pneumatic (OCP) and hydraulic (OCH) drive on the same frame. The hydraulic OCH differs in wall capacity and power: it cuts wall up to 150 mm (OCE / OCP up to 35 mm), runs on a 7.5 / 11 / 15 kW power-pack by pipe size, and extends beyond Ø 1230 mm. Electric models run on 220 V.

Electric	Pneumatic	Hydraulic	Pipe OD (mm)	Pipe OD (in)	Speed (rpm)	Power (OCE)	Power-pack (OCH)	Air pressure (OCP)	Air consumption (OCP)	Net weight
OCE-89	OCP-89	OCH-89	25 – 89	3/4" – 3"	42	1.8 kW	7.5 kW	0.6 MPa	1500 L/min	20 kg
OCE-159	OCP-159	OCH-159	50 – 159	2" – 5"	20	1.8 kW	7.5 kW	0.6 MPa	1500 L/min	35 kg
OCE-168	OCP-168	OCH-168	50 – 168	2" – 6"	20	2.0 kW	7.5 kW	0.6 MPa	1500 L/min	35 kg
OCE-230	OCP-230	OCH-230	80 – 230	3" – 8"	15	2.0 kW	7.5 kW	0.6 MPa	1500 L/min	41 kg
OCE-275	OCP-275	OCH-275	125 – 275	5" – 10"	13	2.2 kW	7.5 kW	0.6 MPa	1500 L/min	46 kg
OCE-305	OCP-305	OCH-305	150 – 305	6" – 10"	13	2.2 kW	7.5 kW	0.6 MPa	1500 L/min	51 kg
OCE-325	OCP-325	OCH-325	168 – 325	6" – 12"	13	2.2 kW	7.5 kW	0.6 MPa	1500 L/min	55 kg
OCE-377	OCP-377	OCH-377	219 – 377	8" – 14"	12	2.4 kW	7.5 kW	0.6 MPa	1500 L/min	60 kg
OCE-457	OCP-457	OCH-457	300 – 457	12" – 18"	12	2.4 kW	7.5 kW	0.7 MPa	1800 L/min	82 kg
OCE-508	OCP-508	OCH-508	355 – 508	14" – 20"	12	2.6 kW	7.5 kW	0.7 MPa	1800 L/min	85 kg
OCE-560	OCP-560	OCH-560	400 – 560	16" – 22"	12	2.6 kW	7.5 kW	0.7 MPa	1800 L/min	95 kg
OCE-610	OCP-610	OCH-610	457 – 610	18" – 24"	12	2.6 kW	7.5 kW	0.7 MPa	1800 L/min	99 kg
OCE-630	OCP-630	OCH-630	480 – 630	20" – 24"	12	2.6 kW	11 kW	0.7 MPa	1800 L/min	105 kg
OCE-660	OCP-660	OCH-660	508 – 660	20" – 26"	11	2.8 kW	11 kW	0.7 MPa	1800 L/min	110 kg
OCE-715	OCP-715	OCH-715	560 – 715	22" – 28"	11	2.8 kW	11 kW	0.7 MPa	1800 L/min	120 kg
OCE-762	OCP-762	OCH-762	610 – 762	24" – 30"	11	2.8 kW	11 kW	0.8 MPa	2000 L/min	146 kg
OCE-830	OCP-830	OCH-830	660 – 813	26" – 32"	11	3.0 kW	11 kW	0.8 MPa	2000 L/min	154 kg
OCE-914	OCP-914	OCH-914	762 – 914	30" – 36"	10	3.0 kW	11 kW	0.8 MPa	2000 L/min	185 kg
OCE-1066	OCP-1066	OCH-1066	914 – 1066	36" – 42"	9	3.0 kW	11 kW	0.8 MPa	2000 L/min	230 kg
OCE-1230	OCP-1230	OCH-1230	1066 – 1230	42" – 48"	8	3.0 kW	11 kW	0.8 MPa	2000 L/min	298 kg
—	—	On request	> 1230	> 48"	—	—	15 kW	—	—	—

02 Working Principle

How a split-frame clamshell mounts on in-situ pipe

The frame is built in two halves joined by a hinged spine and clamping bolts. To install, both halves open, wrap around the installed pipe and close — the bolts draw the frame concentric to the pipe OD through a self-aligning cone seat. A ring gear inside the closed frame rotates around the pipe while one or two radial tool slides feed inward, performing cut and bevel in the same pass. Because mounting needs no open pipe end, this is the only architecture that handles tie-ins, hot-taps and live replacement work on continuous pipe runs and welded manifolds.

OC Series · Split-Frame working principle diagram

03 Key Features

Built for the job site.

// 01

Clamps on installed pipe — no open end required

The two-piece clamshell wraps around continuous pipe runs, elbows, fittings and welded manifolds. The defining capability for in-line repair, tie-in and replacement work.

// 02

Light, compact external mounting — small radial footprint

Lightweight body and clamp-on mounting need little clearance around the pipe — suited to congested pipe racks. The OCE electric motor is only 1.8 – 3.0 kW depending on size, simple to operate.

// 03

One machine, many cut and bevel forms

A single body produces right-hand (RH) and left-hand (LH) bevels, straight parting, single-V prep, 37.5°+10° compound and double-compound bevels (with bore) — and cut plus bevel can run in the same pass.

// 04

Cold cutting — no HAZ, no sparks

Purely mechanical carbide cutting with no heat input. The pneumatic OCP variant is ATEX-friendly — the standard tool for live pipeline work in oil & gas hazardous areas.

// 05

Wall to 150 mm on hydraulic drive — tooling graded by thickness

OCE and OCP cut wall up to 35 mm with the standard tool block. The OCH hydraulic drive takes wall up to 150 mm with heavy-duty (70 mm) and bridge (150 mm) tool blocks; a spring-tracking block adds roundness compensation on deformed pipe over Ø 700 mm.

// 06

Compound bevels per ASME B16.25

Cuts 37.5° V-prep (1.6 mm land), 30° U-prep (1.6 mm land, R3), 6° U-prep (2 mm land, R5) and compound geometry compliant with ASME B16.25.

04 Industry Applications

Where this series earns its keep.

Pipeline tie-in, hot-tap & replacement

In-line cold cutting of transmission and process piping without shutdown. The OCP pneumatic variant suits Class 1 Div 2 / ATEX zones; OCH hydraulic for heavy-wall transmission line.

See pipeline tie-in, hot-tap & replacement solutions

HP steam piping & boiler header replacement

Heavy-wall (≤ 150 mm) main steam line and reheater header work during planned outages. OCH hydraulic drive for heavy-wall compound-bevel prep on Cr-Mo headers.

See hp steam piping & boiler header replacement solutions

Shipyard & offshore module fabrication

Hull-piercing pipe and large-diameter ballast / service piping. Field-portable for offshore platform tie-ins and FPSO module installations.

See shipyard & offshore module fabrication solutions

05 Tooling & Options

What's in the kit.

Wall ≤ 35 mm · INCLUDED

Standard tool block

Standard block for routine cutting and beveling up to 35 mm wall.

Wall ≤ 70 mm

Heavy-duty tool block

Reinforced block for thick-wall pipe up to 70 mm wall.

Wall ≤ 150 mm

Bridge tool block

For extra-thick pipe on the OCH hydraulic drive, wall up to 150 mm.

Roundness comp.

Spring-tracking tool block

For high-precision work, or roundness compensation on deformed pipe over Ø 700 mm.

Internal machining

Boring tool block

For machining the pipe inner wall.

Outer-wall dressing

Outer-wall tool block

For dressing the pipe outer wall and removing anti-corrosion coating.

06 FAQ

Common questions about the OC Series · Split-Frame.

Can't find your answer?

When do I need a split-frame instead of an OD chuck (SOC) or ID-expand (ISE)?

When the pipe ends are not free — i.e. the pipe is already installed in a line, welded into a manifold, or running between elbows and fittings with no straight open end to thread a clamp onto. Split-frame is the only architecture that mounts on installed pipe. For free pipe ends in a fab shop a chuck-type (SOC) is faster to set up; for ID-mounted prep on flanged or congested ends, internal-expansion (ISE / ISP) is the right tool.

How do I pick between OCE / OCP / OCH drives?

OCE electric (220 V, 1.8 – 3.0 kW by size, 8 – 10 A) for indoor and general field work. OCP pneumatic (0.6 – 0.8 MPa, 1500 – 2000 L/min air, vane or piston motor) for hazardous areas — refinery, offshore, petrochemical. Both cover Ø 25 – 1230 mm in 20 sizes and cut wall up to 35 mm. OCH hydraulic (10 MPa rated, 5 – 45 L/min infinitely variable, 50 m remote control) for wall over 35 mm — up to 150 mm — and for pipe above Ø 1230 mm. Its power-pack scales with pipe size: 7.5 kW up to Ø 610 mm, 11 kW for Ø 610 – 1230 mm, 15 kW above Ø 1230 mm.

Which cut and bevel forms can it produce?

Right-hand (RH) and left-hand (LH) bevels, straight parting, single-V prep, 37.5°+10° compound and double-compound (with bore). Bevel-angle examples: 37.5° V-prep (1.6 mm land), 30° U-prep (1.6 mm land, R3), 6° U-prep (2 mm land, R5); compound geometry per ASME B16.25.

Can the machine bevel without parting the pipe?

Yes — fit a bevel-only tool block in place of the parting wheel. The clamshell and ring-gear architecture is identical; only the tool block changes. The same machine handles severing, beveling, boring and end-face work.

What about heavy-wall pipe over 35 mm?

Use the OCH hydraulic drive, which cuts wall up to 150 mm, and swap the tool block: the heavy-duty block cuts wall up to 70 mm and the bridge block up to 150 mm on extra-thick pipe. The clamshell body and ring gear are unchanged — only the tool block and drive module are upgraded for the higher cutting forces.

Which hydraulic power-packs are available for the OCH variant?

Power-pack rating follows pipe size — 7.5 kW up to Ø 610 mm, 11 kW for Ø 610 – 1230 mm, 15 kW above Ø 1230 mm. Three types are available: a primary power-pack (7.5 kW, 380 V 3-phase 5-wire, 10 MPa rated, 0 – 36 L/min adjustable, PLC control with electronic display, manual or remote start, ~239 kg); an explosion-proof power-pack (7.5 kW, BT4 / CT4 rating, 10 MPa, 36 L/min, for hazardous areas); and a diesel power-pack (22 HP / 15 kW engine, 10 MPa, 50 L/min, manual start, for sites with no mains power).

07 Related Series

Other pipe beveling machines.

All pipe beveling machines

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