Conductor removal
Guillotine-style cuts on conductors, lifted out once the cut is complete.
Diamond wire saw
Mactech Articulating Diamond Wire Saws
DWS-40a-AF-SS and DWS-60a-AF-SS for casing and conductor cuts from 22 in to 60 in
Mactech articulating diamond wire saws cut casings, conductors and heavy-wall structures from 22 in to 60 in, including below the marine mudline. A guillotine-style articulating frame needs only about 24 in of clearance around the casing.
Manufactured byMactech
22–60 inCutting capacity across two models
2 models40 in and 60 in
About 24 inClearance needed around the casing
3000 psiHydraulic drive pressure
Overview
Cuts below the mudline with minimal dredging
The articulating diamond wire saw is a guillotine-style saw for tricky conductor removals. Its articulating design reaches casings in hard-to-reach excavations and coffer dams with minimal dredging, and it is purpose-built for cutting below the marine mudline, including subsea jobs.
Low axial clearance and a vertical stance mean the saw needs only about 2 ft of clearance around the casing. It suits multi-string applications and heavy-wall structures such as legs and cross members.
Two models cover the range. The DWS-40a-AF-SS cuts from 22 in to 40 in and runs on 15 gpm at 3000 psi of drive hydraulics. The DWS-60a-AF-SS cuts from 26 in to 60 in with 40 gpm at 3000 psi. Feed and clamp functions are also hydraulic.
Applications
Where the articulating saw works
The saw is made for decommissioning cuts where access around the casing is limited.
Below-mudline cutting
Cuts below the marine mudline, including subsea jobs, with minimal dredging.
Multi-string casings
Cutting through multi-string casings and heavy-wall legs and cross members.
Excavations and coffer dams
Reaching casings in tight excavations with about 2 ft of clearance around the casing.
Features
Articulating saw features
- Articulating, guillotine-style design for conductor removals
- Low axial clearance and vertical stance; about 24 in clearance around the casing
- Two models: 22 to 40 in and 26 to 60 in cutting capacity
- Purpose-built for cuts below the marine mudline, including subsea
- Hydraulic drive, feed and clamp functions
- Portable for field and offshore work
Benefits
What it brings to the job
Less excavation and dredging around the casing
One saw handles multi-string and heavy-wall cuts
Fits where access around the structure is tight
Time saved on decommissioning cuts
Planning a conductor or casing cut?
Share the casing diameters, string layout and access conditions, and our Machinery team will help you select the right Mactech articulating diamond wire saw.
Other Products in On-Site Machining
Explore other products available within the same product category and open each page for complete technical details.
Mactech LC Clamshell Portable Lathes
Split-frame clamshell lathes for spark-free cutting and beveling of pipe from 0.5 in to 16 in OD.
Mactech SD Clamshell Portable Lathes
Clamshell lathes for spark-free cutting and beveling of large pipe from 60 in to 110 in OD.
Mactech USS Clamshell Portable Lathes
Clamshell lathes for severing, beveling and end preparation of pipe from 10 in to 36 in OD.
Mactech WD Clamshell Portable Lathes
Worm-drive clamshell lathes for cutting and beveling heavy-wall pipe from 31 in to 60 in OD.
Mactech Cut-off Diamond Wire Saws
Compact diamond wire saws for pipe and casing cuts from 4.5 in to 24 in, on land, by divers or by ROV.
Mactech In-line Diamond Wire Saws
Compact diamond wire saws, with ROV versions, for cutting piles and legs from 14 in to 120 in.
Mactech Elliptical Manway Facing Machine
On-site facing machine for elliptical and round manway gasket faces from 12 x 16 in to 18 x 24 in.
Mactech LDFM Large Diameter Facing Machine
ID-mounted facing machine for flanges up to 229 in, with rotary milling or single-point tooling.
Mactech BB Portable Line Boring Bars
Portable line boring bars, 1.75 to 8 in, for on-site bore repair from 1-3/8 in up to 96 in.
Mactech Industrial Gantry Mills
Portable gantry mills with up to 116 x 54.4 in travel, plus a modular heavy duty version.
Mactech MT Portable Milling Machines
3-axis linear rail mills, MT4, MT6 and MT8, with beds from 24 in to 120 in for on-site machining.
Mactech Portable Boring Mills
Vertical portable boring mills, MT4, MT6 and MT8, for boring and stud removal on site.
Mactech Stresstech Portable Heat Treating Consoles
Portable 4 to 8 zone heat treating consoles for on-site stress relief, including remote access control.
Mactech Dual Mag Portable Drill
Dual rare-earth magnet drill with 231 ft-lb torque for holes up to 8 in on curved and flat steel.
Mactech Dual Pin Portable Drill
Two-sided casing and conductor drill for pipe from 6 in to 36 in with thru-spindle coolant.
Mactech MD414 Magnetic Drill
Portable magnetic drill with 14.5 in travel, 3 in annular cutter capacity and five motor packages.
Mactech Pipe End Measurement System
Battery-powered laser system taking 1,300 pipe end measurements in about 50 seconds, ±0.002 in.
Mactech Portable ID End Mill Machine
Internal end mill machines that cold cut pilings and casings from inside, from 17 in to 60 in ID.