Dismantling
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GROOVING BENCH – BDR 1100
GROOVING BENCH – BDR 1100
Running principle
PROTEM grooving bench allows to perform grooving or milling works on flanges or on sheets, on site or in workshops.
According to the needs, it can work flat or in vertical axis. Thanks to its clamping system and its adjustable feet,
it has a machining capacity 1025 mm.
Its simple use, its stiffness, its easy adjustment and its great machining capacity makes it a versatile equipment.
Features
- Longitudinal feed and pneumatic spindle : pressure 6 bar / flow 2160 l/min
- Manual transversal feed and milling cutter penetration
- Longitudinal feed : power 120 W, reversible and disengageable
- Manual quick feed : case with crank and multiplier pinion (factor 3)
- Longitudinal guiding: pre-stressed rolls pads mounted onto rail/ ball screw with pre-stressed nut
- Transversal carriage : 50 mm stroke, guiding through dovetail, accurate vernier and locking screw
- Milling spindle : mounted onto a support square (3 possible positions), power 1500 W, 100 mm stroke,
fixing through SA30 cone, milling tool-holder shaft with ER pliers (until Ø20 mm)
- Milling cutter penetration : 100 mm stroke, with vernier and locking handle
- FRL pneumatic unit with emergency stop and motors driving
- Overall machine dimensions : 1510 x 700 x 490 mm
- Machine weight : 193 daN.
Weight and dimensions
- Overall machine dimensions : 1510 x 700 x 490 mm
- Machine weight : 193 daN.
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Weld beads levelling equipment
Weld beads levelling equipment
APPLICATION
Railway coaches manufacturing workshop.
WORK TO BE PERFORMED
This machine is designed for the machining of weld bead,
with 2 to 3 mm thickness, on aluminium floors.
SOLUTION
- Use of a 3 axis gantry crane.
- Use of an axial cam system for a quick adjustment of the depth cut
and part tracking.
- High speed machining
PERFOMANCES
On aluminium:
- Right rotation: 10000 rpm
- Feed: 6 m/mn
OPERATION
- Plate set up on a frame with fixed stops
- Machining position adjustment by squares on rail for a new floor
- Feeds driven by rack toothed wheel.
- Rollers automatic positioning according to the machining direction.
SPECIAL
- Possibility of machining steel plates only by shifting the spindle motor gear reduction
and by reducing the feed speeds
- Possibilty of using the gantry crane for other uses sush as: oxygen cutting, welding,
brushing etc.
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Portable band sawing equipment SAR400 6" - 16"
Portable band sawing equipment SAR400 6" - 16"
Working Conditions
The machine type SAR400 is a portable band saw that allows to cut tubes from 6" - 16".
The clamping system design allows to cut also different elements suchs as IPN, UPN, ventilation
sleeve, etc..
The cuts are performed without lubrication; it allows to use this machine in any environment.
The machine in any environment.
The machine is handled by a crane, a crane jib or any other heavy carrier.
A 5,5 kw hydraulic power pack allows to remote control the band saw.
The machine design allows to use it in any environment:
- Nuclear: no lubrication, low cuttin temperature (55° for the steels).
- Under water: hydraulically driven
- etc.
Cutting process:
The cut is performed with a saw band driven by deflection pulleys.
The shifting is performed with guiding rails.
The cut is performed with no lubrication whatever the material.
Function:
The saw functions are as follows:
- Clamping on the parts to cut: It is performed by hand with 4 jaws (2 preadjustment jaws and
2 clamping jaws).
As an option, the clamping jacks control can be performed by 2 hydraulic jacks directly controlled from
the power pack.
- The cut (bow subset): this subset allows the guiding, the feed and the band stress. The guiding
is performed by 4 pulleys among which 2 are hydraulically driven. The stress is adjusted by a screw/ nut
system. A flywheel allows to stress the band by hand until reaching the stress value preadjusted by the
integrated torque limiter.
- The cutting bow shifting: the bow is fixed to the main frame by guiding rails. Hydraulic jacks perform
the positive linear shifting that allows to cut in different positions.
Hydraulic power pack:
- Power: 5,5 kw
- 2 circuits: band rotation circuit and cutting feed circuit
- Controls: they are performed by activating the levers and rotating buttons. The cutting and feed speed
adjustment have a proportional
- Option: control of the jaws clamping.
Dimensions and weights
Weight: 525 daN.
Dimensions; 1400 x 1400 x 350 mm
Cutting capacity:
The SAR400 allows to cut tubes from 6" to 1" with 50 mm maximum wall thickness.
A great range of saws with the same design allows to cut tubes till Ø 800 mm.
Example of cuttin time: tube 16" (Ø406mm), wall thickness 13mm, steel: 12 minutes.
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Pips re-machining equipment
Pips re-machining equipment
WORK TO BE PERFORMED
Pips machining inside the nuclear reactor (the reactor well is full).
Machining in order to remove the potential cracks followed by cladding.
The machines are lowered along:
- a pipe diameter Ø 560 mm on 8 and 13 m deep
- and a 320- mm length pipe on 14 m deep.
PIPS CHARACTERISTICS
- Diameter 25 and 28 mm
- Machining to be made on a 150 mm diameter.
- Material: stainless steel, Inconel 182 and Inconel 600
TECHNICAL DESCRIPTION
- The machine is entirely activated by remote control from the hydraulic panel.
- The translation and penetration movement of the machine is made via cylinders.
- The tool holder plate rotation movement is made via hydraulic drive.
- Tube hydraulic clamping via 3 concentric jaws.
- Machining feed cadenced by an hydraulic drive.
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Bevelling unit
Bevelling unit
WORK TO BE PERFORMED
Bevel or calibration of 200 stainless steel tubes per day.
The unit, entirely automatic, allows transferring the tubes on conveyors and
compiling them in a hydraulic basket.
It is delivered with its electrical cabinet and offset control panel.
TUBES CHARACTERISTICS
- Stainless steel tubes from ∅ 32 mm (1.25") to 255 mm (10").
- Wall thickness from 3 mm to 25.4 mm
MACHINING
- 30°, 37,5°, single bevels
TUBES CONVEYING
- Tubes are deposited on an input table with automatic transfer and feed movement.
- Tubes rearrengement in a hydraulic basket.
TECHNICAL DESCRIPTION
- TRANSLATION movement through a brushless geared motor, ball screw and pads.
- ROTATION movement through a 22 kW geared motor with frequency variator.
- Automatic height set up through brushless geared motor with frequenxy variator.
- Hydraulic tube clamping though 4 concentric jaws.
- 2 tool-holder carriages with profile tracking are mounted on a rotation plate. This
device allows tool bits to follow the tube ovalization thanks to a roller moving onto
the inside tube diameter, which makes the machining regular.
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Elbow bevelling unit
Elbow bevelling unit
WORK TO BE PERFORMED
Bevel on elbows after manufacturing.
The bevelling unit as shown on the above photo is delivered without elbow clamping device.
It is delivered with its electrical cabinet and offset control panel.
ELBOWS CHARACTERISTICS
- Carbon steel from ∅ 24" (610 mm) to 48" (1219 mm).
- Wallthickness from 6,35 to 38,10 mm
MACHINING
- 37,5° bevel and compound bevels 37,5° and 10°
- Inside counterboring and root face
TECHNICAL DESCRIPTION
- TRANSLATION movement through a brushless geared motor, ballscrew, rails and pads.
- ROTATION movement through a 45 kW geared motor with frequency variator.
- 4 tool-holder carriages with profile tracking (standard US620 PROTEM) are mounted on a
rotating plate. This device allows tool bits to follow the elbow ovalization thanks to a roller
moving onto the inside tube diameter.
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Milling equipment
Milling equipment
DEFINITION
To allow a size reduction of stainless steel radioactive decommissioned containers,
a millin machine will further reduce primary plasma cut parts.
Parts to be cut are stainless steel containers caps and their biological protections.
The none lubricated 35 to 50 mm thick parts to be cut will be done in a single pass,
and all the fallen contaminated chips will be gathered on the lower special bin built to
the effect.
The machine is all built into remotely controlled independant parts that can be easily
seperated for maintenance or transportation
All the different interconnecting wire are all equipped with quick disconnect.
The machine is built of:
- A stocking and holding table for the part to be machined.
- A machining head supporting table that includes all the hydraulic holding pods and top
clamping jaws.
- A 3 axes mill.
- A 5,5 kw powered mill equipped with easy to install and remove holding system. A special
90 deg mill holder is also provided.
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Decommissioning machine
Decommissioning machine
UTILISATION
Decommissioning of a sodium - nuclear reactor.
WORK TO BE DONE
This tool was designed and built to cut into calibrated pieces the internal
and external parts of the reactor, in order to stock the pieces in their
special containers.
FUNCTIONING
The whole tool includes a precision bridge supporting the main decommissioning
tool, positioning it into its required machining spot into the reactor, and a commanding
panel off contaminated zone. For such diverse operations many different machining
tool block be tele-manipulated, one after the other on the main machining shaft.
SOLUTION ADOPTED
The machine is hydraulically self centered through 8 jaws.
The machining is done with three different types of cutting mills.
Four machining axes electrically motorized are available for alle the different
cutting positions.
The tool rotation is hydraulically driven.
The cuttin info as well as all the other positioning info is all being brought back to the
control driven by an operator.
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Plate cutting machine
Plate cutting machine
CAPACITY
- Plates: 3 x 2 meters
- Wallthickness: from 5 to 30 mm
- Cut material: specific steels, high elasticity limit steel, stainless steel, inconel ...
TECHNICAL DESCRIPTION
- Table with handling ball rollers for plate loading.
- Pneumatic devices for plate feeding.
- Manual limit stop with precision rule for cut length.
- Linear guide with rails and pads.
- Ball screw with asynchronous gear drive for the millin feed (controlled via frequency variator)
- Milling supplied with an electrical cabinet including.
- Chips conveyor and microlubrication
- Control panel (machine tool type).
PERFORMANCES
Feed rate up to 600 mm / min in steel material
No heat cycle is encountered (base material left in its intended metallurgical state)
Straight burr free cut.
Possibility to cut and bevel.
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Cutting machine in form of "U" with wheels Ø 21 to Ø 13
Cutting machine in form of "U" with wheels Ø 21 to Ø 13
WORKING CONDITIONS
Decommission of contaminated pipes on nuclear site.
Equipment to cut with wheels stainless and PVC tubes through remote control system.
Technology: << U >> structure.
This principle allows installing and releasing the machine radially without dismounting.
It is only necessary to place the turning and the fixed part side by side in order to open
the <<U>>.
FUNCTIONS AND CAPACITIES
Cutting
Material: Stainless steel, PVC ...
- Outside Ø 22 mm wall thickness 1,6 mm
- Outside Ø 13 mm wall thickness 1,6 mm
DIMENSIONS AND WEIGHT
Dimensions = 156 mm x 227 mm x 350 mm
Weight = 10 kg
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Internal tube-cutting machine Ø 650, thickness 7
Internal tube-cutting machine Ø 650, thickness 7
APPLICATION
Hazardous area and/or non accessible piping.
DESCRIPTION
- Clamping with 2 fixed jaws +1 hydraulic jaw.
- The tool-holder rotation is hydraulically or pneumatically driven.
- Mechanic feed of the tool bits with an incremental pneumatically driven finger.
- The tool-holder carriages are similar to those installed on th external tube-cutting
machines model TTS (see technical sheet 0054).
- Travel: 50 mm
OPTIONAL
- Remote control box
- Video camera
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Universel nuclear equipment
Universel nuclear equipment
APPLICATION
The universel nuclear equipment allows to perform the several operations carried out on a nuclear
steam generator for submarine power unit.
WORKING CONDITIONS
In workshop, in restricted area.
WORK TO BE PERFORMED
To perform a non destructive control on the tubular plate and to allow an operator to work
in contact
SOLUTION
The universel equipment is made up of an elevating table allowing a movement in front of the
tubular plate according to X and Y and of an accurate equipment working accurately (0,01 mm)
on X,Y and Z.
This equipment allows to remote control the tubular beam, with the help of the Foucault current
and of a video system.
The accurate positioner can be replaced by a lead plate that protect biologically an operator
who can work in contact on the plate with tubes of the exchanger.
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Welding station for phenix boxes
Welding station for phenix boxes
APPLICATION
Welding layout for the welding of fuel needle case boxes.
WORKING CONDITIONS
Operation in cell.
WORK TO BE PERFORMED
Sealing of stainless steel boxes using TIG welding process. This operation is
achieved by melting two 3 mm thick lips and a STAUBLI socket located in the
middle of the cover.
SOLUTION ADOPTED
Orbital weldin head, drive by a step-by-step motor. This head is fitted out with
a remotely dismountable TIG torch for the welding of the box cover.
Welding handle fitted out with the same torch for the STAUBLI fittin welding.
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Cutting and decladding equipment
Cutting and decladding equipment
APPLICATION
Wheel cuttin of fuel rods.
WORKING CONDITIONS
Operating in glove boxes.
WORK TO BE PERFORMED
This equipment is appropriate for the cuttin of diameter 12,3 and 9,6 mm clads.
A minimum necking is kept for the removal of fuel pellets by inclinating the fuel rod cut.
Characteristics of the fuel rod:
Diameter 9,5 mm, thickness 0,6 mm
Diameter 12,3 mm, thickness 0,9 mm
Material: zircaloy
SOLUTION ADOPTED
- Clamping through envelopping jaws.
- The rotation of the cutting plate is drive by a dv drive.
- Break and removal of the fuel pellets governed by pneumatic jacks.
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Internal cutting of piping
Internal cutting of piping
APPLICATION
Internal cutting of pipin for the decommissioning of a nuclear reactor (Germany).
Dimensions of the pipes cut with the same machine, after removal of the cuttin head:
- OD: 60,3 to 222 mm
- Thickness: 2,9 to 16 mm
The machine is remotely operated in a restricted area. The presence of sodium on the
tubes external walls requires certified cutting parameters which ensure an increase in
temperatured below 50°C.
SOLUTION ADOPTED
The cutting operation is achieved through two concentric expanded tools.
OPERATION
The cuttin cyle is entirely automatic via a remote control panel which allows the operator
to govern and control the cycle run.
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Sealing of nuclear waste drums usin TIG welding process without wire supply
Sealing of nuclear waste drums usin TIG welding process without wire supply
APPLICATION
Sealing of a cover onto a nuclear waste drum, this layout is part of a processing
chain for the storage of nuclear wastes.
WORKING CONDITIONS
Automatic welding layout integrated into a restricted area.
WORK TO BE PERFORMED
Sealing of steel drums using TIG welding process.
The welding operations require remelt heating of a 3 mm thick lip.
The welding procedures have been certified in accordance with the ASME sect. IX standards.
SOLUTION ADOPTED
Research and definition of the welding process including the parameters adjustment and the
manufacturing of a welding layout for Ø 531 mm to Ø 1450 mm, 10000kg waste drums.
Weight of the layout: 7500 kg
Supervision of the melting bath during the welding operation through video monitoring.
The recording of all the welding parameters appropriate for each piece enables the issue
of an identification card per package.
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Asphalt drums cutting equipment
Asphalt drums cutting equipment
WORK TO BE PERFORMED
This equipment allows cutting asphalt and metallic parts on 223 litres drums.
The final aim is to slip the cut drums into stainless steel transport drums with
a 40 mm minimum clearance at the radius.
WORKING CONDITIONS
The operation is performed through a radiological screen.
The device is activated by an hydraulic jack Ø 50, travel 100, rod Ø 25.
In order to reduce the space requirements and the weight at the end of the rod,
the jack is pushed towards the operator side.
The strength transmission is performed by a sliding shaft in a 45 mm diameter
aluminium tube.
In to facilitate the assembly and disassembly of the tool on the radiological screen,
a coupling, easily accessible, is provided at the nivel of the jack.
At the end of the device, the jaws are activated by a seesaws system.
The device is controlled by a handle with a button fixed on the tube. Pressing the button allows
to close the device.
SPACE REQUIREMENT AND WEIGHT
Length = 260 cm
Width = 15 cm
Height = 15 cm
Weight = 45 kg
The machine is delivered with a support for the cleaning and a 750 W hydraulic station.
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Elastomer casings cutting
Elastomer casings cutting
PRESENTATION
This machine, integrated in a production line, is used to cut at the right length a product
with several components. It is made up of an aluminium central tube and an elastomer
(including 3 different materials) casing.
The inside support aluminium tube is extracted by wheel cutting without chips with limited
burr, in order to avoid scratching the elastomer inside material.
TECHNICAL DESCRIPTION
The machine is fitted out with an asynchronous motor, equiped with a brake and a
frequency variator.
The clamping is performed by 6 concentric jaws, activated by a cam system with a direct
current electric motor.
The machine is designed to be able to machine different diameters from Ø 32,8 to Ø 56,8.
The tube diameter changing requires a simple adjustment of the wheels position.
The cut is performed with two wheels carried on a plate turning at more than 500 rpm.
Each wheel trajectory, fast feed, feed and backward movement, is operated with an entirely
mechanical system with a cam.
The machine is delivered with its control box including a programmable PLC.
CHARACTERISTICS
- Electric motorization: .............. 1,5 kW
- Machine weight: .................... 138 kg
- Space requirement (in cm): ..... 140x80x50
CYCLE DESCRIPTION
- Clamping
- Fast feed
- Cutting
- Wheels backward movement
- Stop position control
- Unclamping
Cycle time: 14 seconds
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Drilling and boring machine Ø 600 to 1000, stroke 400 mm
Drilling and boring machine Ø 600 to 1000, stroke 400 mm
APPLICATION
This machine is being used in a submarine construction shipyard. it has been primarily designed
to re-machine holes after an oxy/ acetylene cut.
Those holes are being made on a steel double hull which is 35 mm thick. Both hulls are spaced
thanks to stiffener.
MACHINING CONDITIONS
The machine is made in 2 parts, centered and welded on each side of the hole to be machined.
The machining operations on 600 to 1000 mm diameter, are achieved using carbide inserts.
- Feed stroke 400 mm
- RPM (unload): 64 RPM
- Cutting speed: 160 m/min on Ø 800
TECHNICAL SPECIFICATION
Feed system through a clutch and a star wheel (linked to a feed screw):
- AXXAIR pneumatic motor: ...... 2 fois 1,5 kW
- Weight: .............................. 350 kg
- Overall dimensions (cm): ........115x115x115
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Machining of taper pipes
Machining of taper pipes
APPLICATION
This portative tool is intended for the machining of 90° cones,
Ø 60 mm, in electrical cables Ø 105 mm (copper braid, Ø 56 mm into a PE insulating sleeve).
The tool is clamped manually, on an insulated cable section. Then, according to the tool-holder
installed on the machine, the operator can machine a male or a female cone.
CHARACTERISTICS OF THE MACHINE
- Electric drive 220V, nominal power 2800 W
- Double-stage epicycloidal reducing gear, reduction rate: 1/54
- Anadized aluminium body
- Manunal feed system with limited play, maxi travel: 40 mm
- Manual clamping through enveloping jaws:
1 fixed jaw and 2 mobile jaws.
TOOLS
Two types of specific rapid machining steel blades have been designed and manufactured.
MACHINING CONDITIONS
Tools rotation: 120 RPM
Machining time: around 2 minutes for one machining operation.
OVERALL DIMENSIONS
Overall dimensions (cm)
Length .................... 890
Width ...................... 170
Height ..................... 325
Weight .................... 21 kg
Nuclear reactors have been designed for a given lifetime. Most of the time about 30 through 40 years. The policy in most countries leads to lenghten this duration. Some of the components can be replaced during reactors periodical stops. PROTEM invites you to consult the section NUCLEAR MAINTENANCE.
The three stages of a reactor dismantling are classified as follows:
Level I: Final shutdown
Level II: Partial dismantling: destruction of all the buildings excepted the reactor building.
Level III: Total dismantling: dismantling of the reactor building which includes,
besides the reactor building destruction,:
- the dismantling of the exchangers
- the reactor block dismantling.
Some of the equipment designed and manufactured by PROTEM allowed to dismantle several components, among them reactor blocks, of several nuclear power stations in Europe.
Here, PROTEM invites you to consult the description of some of remote-controlled equipment which allowed to dismantle reactors vessels and/or reactors lids.
