Product Groups

Marine Chocking products, are self-leveling, fast curing, non-shrinking grout, two-part epoxy chocking system Outstanding chemical and vibration resistance and compressive strength to withstand maximum loads. Typical applications include installation of main engines, drive engines, winches, hoists, and deck mounted equipment. The propeller main drive shaft and other metal surfaces are provided with effective and long-lasting protection against saltwater-induced corrosions exposed to severe sea conditions.

Our shaft coating service is used in ship types below;

• Frigate, aircraft carriers, submarine, patrol boats, etc. navy ships
• Police and coast guard boots
• Research ships
• Ice breakers
• Yatchs
• Commercial ships

Shaft Coating Features;

• Epoxy based material
• Protection against corrosion
• Excellent resistance to shaft vibration and stress
• Excellent adhesion strength
• No shaft disassembly is required
• No need to rotate miles
• Easy to repair

Most shaft assemblies are integrated within systems that represent a significant capital equipment cost. Therefore, it is important both to extend their working lives and to ensure reliable performance under a variety of conditions. The use of proactive maintenance – with appropriate products – can minimise costly downtime, increase reliability and, thus, cut costs.

So, just what can be done in this area of proactive maintenance? It goes without saying that mechanical parts do wear. But excessive wear – with all its resultant damage – can be limited. For example, in a new assembly, the fit between a key and the keyway is generally tight. But, over time, wear can result in the fit becoming loose – leading to damage.

However, the application of a medium strength threadlocking adhesive to the key or keyway at initial assembly will help fill the gap in any worn areas and still allow the strength of the joint to be maintained. By using a medium strength product, the assembly can be dismantled in the future should other forms of servicing be required.

Threadlockers are anaerobic in nature, so they will not cure until air has been removed from the joint – action that occurs when the metal parts are reassembled.

The results of using a threadlocker include the elimination of micro-movements that lead to fretting and reduced wear in the keyway. In addition, because the adhesive flows into all the surface irregularities and effectively seals the assembly, corrosion is prevented.

Such adhesives are available in either liquid or semi-solid stick formulations. The former are applied directly from the bottle, while sticks provide the same bonding strength, but from a container that fits easily into the pocket or tool boxes.
 

Bearing the strain

Where initial machining of a component has not been precise, movement on shaftmounted components such as bearings can occur. Perhaps the load is producing axial forces that are greater than the original calculations – and wear occurs.

Or a spun bearing is caused by insufficient interference or inappropriate loads.

In any of these three scenarios, adhesives can be used to repair the worn shaft and thereby reduce downtime and even prevent expensive parts from being scrapped.

For instance, where the repair involves an original assembly that has either a press or transition fit, then a medium strength retaining adhesive can provide the answer. If the shaft is badly worn, then sleeving can be used as the repair method. This solution involves machining the shaft to create a transition fit and then bonding it to the correct size sleeve. The outside diameter of the sleeve should be the specified shaft dimension.

The surface of the parts should be cleaned with a suitable degreasing agent.

Retaining adhesive can then be applied to the leading edges of both the shaft and the sleeve and the parts assembled.

Further beads of adhesive may be required for long components.

Excess adhesive is then wiped away and the joint left to cure.

Like threadlockers, retainers are available in both liquid and stick formats.

Building up

If rebuilding and bonding of a badly worn shaft is required, then a metal filled epoxy is used for the repair. Using a lathe, the shaft should be undercut in the worn area.

Where the shaft diameter is between 13 and 25mm, the desired undercut is 1.5mm. For shafts up to 75mm, the undercut should be 3mm.

The ends of the worn area are then dovetailed in order to lock the assembly.

The undercutting should then be finished by machining a rough-cut surface – for example, Rz:=100µm. The larger the shaft diameter, the more coarse the cut.

The parts are then cleaned and degreased, and a thin layer of a suitable epoxy adhesive forced into the rough surface finish. The shaft can be turned at a low speed and further adhesive applied with a putty knife to a depth slightly above the desired level. After the adhesive has cured for 12 hours, the repair can be machined to the required dimensions.

The joint between the shaft and the mounted component can be retained with a suitable anaerobic adhesive.

VIBRATION METER, ANALYZER AND DATA COLLECTOR IN ONE

The A4900 Vibrio M device allows you to perform all basic vibro-diagnostics measurements for bearing condition, identification of mechanical faults and lubrication assessment.

The A4900 Vibrio M is equipped with 4MB of memory for data storage. Data memory allows you to store off-route and route measurements. 

Our expert system for automatic machine fault detection is included.

KEY FEATURES

•  All basic vibrodiagnostics measurements: Overall values, Time signal, Frequency bands, FFT Spectrum, Route measurement
• 4 MB memory for data storage
• Detects unbalance, looseness, misalignment or bearing faults
• ISO 10816-3 included
• 8 hours of operation
• LED stroboscope
• Available also in intrinsically safe version A4900 Vibrio M Ex

VIBRATION METER, ANALYZER AND DATA COLLECTOR IN INTRINSICALLY SAFE VERSION

The A4900 Vibrio M is avaliable in an Ex version. All basic vibro-diagnostics measurements are available: Overall Values, FFT Spectrum, Time signal, Frequency bands, Route measurement and Expert system for automatic fault source detection. You can listen to the signal with the headphones supplied with every unit.

The A4900 – Vibrio M Ex is equipped with 4 MB of memory for data storage. Data memory allows you to store off-route and route measurements.

KEY FEATURES

• All basic vibrodiagnostics measurements: Overall values, Time signal, Frequency bands, FFT Spectrum, Route measurement
• 4 MB memory for data storage
• Detects unbalance, loosenes, misalignment or bearing faults
• ISO 10816-3 included
• 8 hours of operationDetermines the condition of your bearings, including slow-running ones

MONITORING AND CONTROL OF LUBRICATION PROCESS WITH VIBRATION DATA COLLECTOR

The A4910 Lubri is a maintenance tool used for monitoring and control of the lubrication process. The A4910 Lubri measures the actual bearing lubrication status and informs the operator when the lubrication state is optimal.

Application of the A4910 Lubri extends the bearing lifetime and saves lubricants. Headphones can be connected to listen to the bearing/machine noise. The A4910 Lubri is simple to operate and also enables you to perform basic measurements and diagnosis of bearing condition. The A4910 Lubri can store the data and along with free DDS software allows to perform route measurements .

KEY FEATURES

• Increases bearing lifetime
• Basic vibrodiagnostics measurement
• Monitoring and control of lubrication process
• Stethoscope function – “listening of bearing/machine noise”
• Values in traffic light colours tells you when to add the grease

3-CHANNEL VIBRATION ANALYZER, DATA COLLECTOR AND MANY MORE

The A4300 VA3 Pro is the newest addition to our range of portable devices for vibration diagnostics. Signal inputs allows to connect two individual acceleration sensors or one Triaxial sensor. Input for speed probe is always ready to trigger your all three channel measurements simultaneously!

IR temperature sensor (for bearing temperature measurement) and a LED stroboscope/torch are built-in and ready to go by one button press. The A4300 VA3 Pro is designed for one-handed operation. With a weight of just 780g and a battery life of more than 10 hours of continous operation, the unit is suitable for long route measurements.

The A4300 VA3 Pro instrument can be configured according to your requirements by choosing optional modules.

KEY FEATURES

• Ideal for route measurement
• Long lasting battery
• Low weight: 780 g
• Route memory: 8 GB
• Colour display 240 x 320 px
• User configuration of required measuring modules

VA3 Pro Ex is a professional vibration analyzer determined to protect your machinery. Build your kit according to your needs. Single or multi axis sensors, speed probe and other accessories are ready for your vibration analysis and predictive maintenance program on general.

FORGET THE REST CHOOSE THE BEST!

VIBRATION ANALYSIS
THERMAL IMAGING
ULTRASOUND MEASUREMENT

Explore the most powerful Vibration Analyzer on the market.
Use multitasking tool in order to analyze your machinery.
Balancer, thermal imaging camera, ultrasound, bump test, ODS, MCSA – you name it…

Measure 4 vibration signals and 4 process values (temperature, pressure etc.) along with speed synchronously. Triaxial sensor friendly, proximity probes for displacement measurement, ultrasound microphone, acoustic microphone, thermal imaging camera, current clamp meter, stethoscope and more.