ixtur LI-120 Manuel utilisateur
Ixtur Oy, Varespellontie 6, FI-21500, KAARINA, FINLAND
www.ixtur.com
USER MANUAL
Automatic Lifting Magnet LI-120
2014 V1.2
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Ixtur LI-120
Table Of Contents
Introduction
- Safety Guidelines and Warnings
- General Product Information
- Purpose of the Product
- Technical Specifications
- Warranty
Automatic Lifting Magnet LI-120 Features
- Holding Force and Lifting Capacity
- Material Properties
- Air Gap and Surface Quality
- Material Thickness
Use of Automatic Lifting Magnet LI-120
- Indication Lights and Functions
- Residual Magnetism
- Product Deployment
- Start-up and Shutdown
- Charging
- Automated Use
- Manual Use
- Battery Status Check
- Maintenance and Inspection
Decommissioning of Automatic Lifting Magnet LI-120
Patent Pending
EC Declaration of Conformity
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Ixtur LI-120
Introduction
Safety Guidelines and Warnings
Please read this manual carefully before deployment to ensure safe use of the device
Keep this manual in good condition and easily accessible for the operators of the device
This device includes a source of magnetic field. A fluctuating magnetic field is produced during the use
in the proximity of the device.
This device produces a magnetic field that may interfere with medical devices such as metallic
implants or cardiac pacemakers. Do not use this device and keep out of close proximity unless you
have approval from the manufacturer of the medical device or from your physician
The operator should always ensure that the use of this device meets operational instructions, local
regulations and national safety regulations related to lifting and lifting equipment
Never leave the operating device unattended despite the holding force in circumstances when the
load might drop, causing the risk of damage or serious bodily injury
Do not disassemble or replace the device parts
The device must not be used for lifting or transporting people
Never leave the load unattended
Lift only one work piece at a time
Let the people nearby know that the lift is to begin
Always pay special attention to the factors that may decrease the holding force of the magnet
Always stay clear of the load
Never lift loads over people or in close proximity to people
The permitted lifting capacity must not exceed
Do not operate a damaged or malfunctioning device
Do not use the device while it is connected to the battery charger. Before using the device, disconnect
the battery charger from the device and from the electrical outlet.
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Ixtur LI-120
General Product Information
Automatic Lifting Magnet LI-120 manufactured by Ixtur, is electrically controlled lifting equipment, which
creates magnetic holding force with a permanent-magnet. LI-120 is a flexible and user-friendly device for
professional use. LI-120 can be utilized either manually with operation buttons or automatically with built-in
load-sensing system.
Energy efficiency. Automatic Lifting Magnet LI-120 has bi-stable operational structure, which means that the
device does not consume energy while maintaining the magnet's ON (attached) or OFF (released) -state.
Because of bi-stable structure the design solutions have low energy consumption. The switching between
states is controlled with a short electrical pulse. This increases the number of lifts to over one thousand with
one complete battery charge.
Serviceability. Automatic Lifting Magnet LI-120 has low energy consumption which has removed the
requirement for an external power source. This allows a compactly integrated package with a chargeable
battery. Low energy consumption extends operating time, which results to long and efficient working without
interruptions.
Safety. Automatic Lifting Magnet LI-120 produces a magnetic holding force beneath it's magnetic lifting
surface only with loads made of ferromagnetic materials. Automatic Lifter LI-120 activates the magnetic lifting
surface only with a sufficiently small air gap. Automatic Lifter LI-120 leaves the magnet in its latest state
('attach' or 'release') in case the power is lost. The battery status can be checked from the device and low
capacity is indicated by blinking lights. Automatic operation mode of Automatic Lifter LI-120 allows the
operator to stay clear of the load during lifting without the need to go to the lifting area.
Purpose of the Product
Automatic Lifting Magnet LI-120 is a portable and detachable lifting equipment, which is intended for
temporary lifting and transportation of loads made of ferromagnetic materials.
Lifting Magnet LI-120 is intended for such lifting operations where the use of other mechanical hoist systems
would be slow or when the accessibility of either hoist system or load would be poor and would require the
operator to go to the lifting area during the lift.
Lifting Magnet LI-120 is not intended for permanent attachment to load items.
In case Lifting Magnet LI-120 is used as a component, in order to integrate one or several Lifting
Magnet LI-120 devices to larger lifting system, or to connect the devices to one another, permanently
or temporarily, in all such cases it is the responsibility of the designer, the manufacturer and the
operator of the device or the system to ensure that local and national safety regulations and general
safety policies are met.
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Ixtur LI-120
Technical Specifications
Dimensions (Length x Width x Height): 125 mm x 125 mm x 200 mm
Weight: 6,50 kg
Holding force: minimum 360 kg (S235 S≥12 mm)
Rated lifting capacity: 120 kg (S235 S≥12 mm)
Residual magnetism: maximum 5 kg
Battery: 9.6 V, 2700 mAh (8 x AA / 1.2 V / 2700 mAh)
Charging voltage: 16 V DC
Environmental conditions:
- Operating temperature: 0°C … +50°C (the magnet will not power up if the temperature is below 0 °C)
- Charging temperature +5°C … +35°C
- Storage temperature: -20°C … +35°C
- Humidity 0% … 90%
- IP54 (The magnet is protected from dust and splash water)
Charging time: max. 2 h
Operational time with fully charged battery: 100 hours in standby mode or 3000 magnet activations (ON or
OFF)
1 2 9 8 10
3 5 4 6 7
1. Lifting shackle
2. Lifting shaft
3. Left operation button, MAGNET ON/OFF switch / left indication light
4. Right operation button, POWER ON/OFF switch / right indication light
5. Middle indication light
6. Charging terminal
7. Lifting surface
8. Locking ring
9. Fastening bolts (M8 – 8 pcs.)
10. Shaft collar
Warranty
The product has 12 months warranty from the date of delivery. The warranty covers material and
manufacturing defects. Warranty does not cover defects caused by misuse of the product against the
instructions and regulations in this manual. Warranty does not cover normal wear and tear.
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Ixtur LI-120
Automatic Lifting Magnet LI-120 features
Holding Force and Lifting Capacity
Holding force and rated lifting capacity of Automatic Lifting Magnet LI-120 can only be applied to such lifting
situations where the forces are perpendicular to the magnet's lifting surface. Material properties and thickness
of the load also affect the holding force, as well as any non-magnetic material that separates the magnet's
lifting surface from the surface of the load, for example air. Surfaces must be clean and the air gap zero to
achieve maximum holding force. The load surface must be flat and it must occupy the lifting surface of the
device completely.
Maximum holding force and lifting capacity of Automatic Lifting Magnet LI-120 are rated with steel EN S235,
with minimum material thickness of 12 mm.
Lifting capacity is proportional to the material thickness, which is presented later in this user manual in chapter
'Material Thickness'.
Lifting capacity is proportional to the air gap, which is presented later in this user manual in chapter 'Air Gap
and Surface Quality'.
Read carefully the characteristics related to the magnet's lifting capacity before deployment of
Automatic Lifting Magnet LI-120
Lifting capacity of the device must not be exceeded
The device should be centered with the load to minimize inclination and to ensure safe lift
An inclined load causes a twisting force on the device which reduces the lifting capacity
An inclined load may slide which could cause the load to drop
The forces caused by acceleration must be considered during lifting. For example, sudden
raising or lowering cause stronger forces than slow and smooth moves.
Material Properties
Magnetic characteristics of the material being lifted affect the magnet's holding force. Primary components of
holding force are the intensity of magnetic field and the magnetic characteristics that define how well the lifted
material conducts the magnetic flux.
Holding force and lifting capacity of Automatic Lifting Magnet LI-120 are rated with steel EN S235. Most other
steel materials produce lower holding force.
Hardened steel conducts less magnetic flux than equivalent unhardened steel. Therefore, hardened steel has
lower holding force.
Lifting capacity of 120 kg is determined with steel EN S235. Most other magnetic materials result
in lower holding force.
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Ixtur LI-120
Air Gap and Surface Quality
Any material that separates the magnet's lifting surface from the surface of the load reduces the total magnetic
holding force. Reduction can also be caused by non-magnetic materials or by materials with weak magnetic
qualities, such as, zinc or paint or similar coating, rust, frost or air. This manual uses air as an example.
An air gap may also increase due to rust on the load surface, foreign particles such as metal chips from
welding, corrosion, and convexity or concaveness of the surface.
Before magnet attachment, both the magnet's lifting surface and the load material surface must
be cleaned of foreign materials to minimize the air gap that reduce holding force
Due to residual magnetism, the magnet's lifting surface may contain magnetic particles or pieces
which reduce the holding force
The load material surface may bend and become convex during the lift, which produces an air
gap and reduces holding force. Especially thin materials may cause this effect
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Ixtur LI-120
Material Thickness
In addition to ferromagnetic characteristics of load material, magnetic holding force is affected by the
thickness of the material.
The material's maximum conducting capacity for a specific magnetic field strength is achieved with a specific
threshold thickness of steel plate.
When the thickness becomes smaller than this threshold, the conducting capacity of steel plate weakens, and
at the same time, the holding force is reduced.
When steel plate thickness becomes greater than this threshold, the holding force is no longer proportional to
thickness, as the magnet has reached its full capacity.
For Automatic Lifting Magnet LI-120, the maximum magnetic holding force in the load material is rated with
steel EN S235, with minimum material thickness of 12 mm.
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Ixtur LI-120
Use of Automatic Lifting Magnet LI-120
Indication Lights and Functions
Function of device / mode Indication light / lights Use of device
Power OFF No lights No functions
Start-up Two green lights are blinking for 3
seconds Normal use
Not starting Blue Light blinks once
Operating temperature too low
Magnet ON (attached) Green blinking light Normal use
Magnet OFF (released) Red blinking light Normal use
Low battery voltage Yellow blinking light Connect the device to the battery charger
Charging Yellow light
Wait until the battery is fully charged, then
the device returns to normal functional
mode
Battery status check Blue light and Green blinking light, 2 to 9
times
Wait until the device returns to normal
functional mode
To reduce power consumption Automatic Lifter LI-120 shuts down automatically when it is left unused for 60 minutes. After this LI-
120 can be restarted normally.
Magnet is reset by pressing both buttons for 10 seconds
Residual magnetism
When Automatic Lifting Magnet LI-120 is either released from the load or shut down, the magnet's lifting
surface has a residual magnetic force. This residual magnetic force may lift a piece of 5 kg depending on the
shape and material of the piece.
Due to residual magnetism Automatic Lifting Magnet LI-120 may collect pieces and particles not meant to be
lifted. Please consider the residual magnetism of Automatic Lifting Magnet LI-120 when transporting, using,
maintaining and storing the device.
Due to residual magnetism the device may lift light pieces when the magnet is released, but full
holding force is not in use. Ensure always before lifting that the load is attached to the magnet and is
confirmed by the green blinking indication light.
Due to residual magnetism, magnetic particles and pieces may get attached to the magnet's
lifting surface; these will reduce the holding force during the lift.
Automatic Lifter LI-120 has an automatic demagnetization feature which is activated when the device senses
the lifting shaft elevation in magnet's OFF-state. Due to demagnetization, less force is needed to release the
load from magnet. Demagnetization stays active for 0.5 seconds.
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Ixtur LI-120
Product Deployment
The battery of Automatic Lifter LI-120 is charged by the manufacturer, but full battery charging is required
before deployment of the device. Automatic Lifter LI-120 is ready for use right after charging. See the chapter
'Charging' later in this manual.
Start-up and Shutdown
Turn the device on by pressing the right button for 3 seconds. During start-up, you see two green lights for 3
seconds. After start-up the indication lights show the magnet's 'normal use' mode:
Green blinking light = magnet ON (attached)
Red blinking light = magnet OFF (released)
Turn the device off by pressing the right button for 3 seconds.
Charging
A battery charger is shipped along with Automatic Lifting Magnet LI-120.
Automatic Lifting Magnet LI-120 indicates low battery voltage by a yellow blinking light. When the battery is
empty, the device responds neither to the operation buttons nor to the movements of the lifting shaft, and the
magnet's latest state remains, for example 'magnet ON' (attached). When the yellow indication light is
blinking, move the device near to the battery charger and start recharging as soon as possible.
Plug the battery charger into a 100V - 240V electric outlet and connect the line cord to the charging terminal of
the device. The yellow light is on during charge. Charging ends automatically when the battery is fully
charged.
Detach battery charger from the device and from the electrical outlet after charging
Do not use the device for lifting when charging is ongoing
Do not use battery chargers from other manufacturers; only use Automatic Lifting Magnet LI-120
battery charger
Automated Use
Operating Information
Automatic Lifting Magnet LI-120 can sense the elevation of the load automatically. The device has a vertically
moving lifting shaft whose position indicates whether the device is lifted up or released down.
Lifting shaft in UP-position:
When the device is elevated, the lifting shaft goes to UP-position.
Own weight of the device keeps the lifting shaft in UP-position when the device
hangs freely from its lifting shackle.
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