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Loss in weight feeders are used for the gravimetric dosage of bulk solids (powders, pellets, flakes,..) or liquids, with flow rate range between 1 and 30.000 kg/h allowing to reach high accuracy.
These feeders are applied for continuous blending or for feeding extruders or other process machinery.
Dosing equipment mainly consist of:
- Buffer hopper (that could be provided with antibridge swift) made of stainless steel
- Dosing device (screw conveyor, vibrating chute, gear pump) with continuously adjustable speed.
- Scale with load cells and signal amplifier
- Control system (PLC) that could drive until 15 feeders simultaneously.
GSBI developed a control system that allow the feeders control by means of PLC available in the market (Allen Bradley) avoiding the requirement of dedicated electronic cards or microprocessors, granting the following advantages:
- Reliability, performance and spare parts are the same of the used commercial PLC.
- It is possible to include the management of loss in weight feeders in the PLC that control the raw material storage and conveying plant.
- Simple communication with supervision systems by means of most common standards.
Operator interface is a PC that allows a clear and friendly monitoring of the plant and a very simple process data management.
Also available in compliance with ATEX Directives - Category 3D.
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L-FEEDER
The L-feeder is an innovative loss-in-weight type constant feed weigher, which is based on Yamato's own loadcell technology, optimal control, self-diagnostic function, remote maintenance system and power handling technology. L-feeder serves manufacturing process of chemical products for it industry.
Purpose
The l-feeder will increase productivity in large item small volume production such as continuous blending and extruder line etc, assure quality control, and minimize material giveaways and maintenance cost.
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The Technology
Feeding of low to high viscosity liquids
Dosing pump tyes depending on
liquid characteristics:
Piston and diaphragm pumps
Gear pumps
etc.
Heated Designs
Electrical heating
Hot water heating
Hot oil heating
etc.
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Ramsey Loss-in-Weight Feeders from Thermo Electron Corporation maintain quality and weighing accuracy, reduce material waste and improve blend consistency for increased profits. They accurately control the flow of powders, pellets, flakes or granules to critical processes. They handle hot, floodable and difficult material and are unaffected by dust and material accumulation.These feeders can increase your profits by maintaining quality and weighing accuracy, reducing material waste, and improving blend consistency.
Product Detail
The accurate feeding of dry bulk material is often critical to maintaining product quality. A feeder that weighs accurately and reliably can reduce material waste, improve blend consistency and increase profits.
Ramsey Loss-In-Weight Continuous or Batch Feeding Systems from Thermo measure the mass flow rate and total mass of various bulk materials, such as powders, pellets, flakes and granules. We incorporate the standard, low capacity and sanitary versions of our volumetric feeders into a complete gravimetric feeding system, providing accuracies of ±0.25% to 1.00% and more reliable process control over typical volumetric feeding systems.
There are many advantages to utilizing loss-in-weight feeders. They can handle hot, floodable and difficult materials; are unaffected by dust and material accumulation; and are well suited for low feed rate applications. The entire feeding system is weighed, so there are no errors caused by belt tensioning or tracking. No transportation lag time exists, ensuring precision second-to-second accuracy. Feed accuracy can always be checked during normal operation without the need for sampling.
The Ramsey Micro-Tech 2104 Loss-In-Weight Feeder Controller is specifically designed for continuous or batch loss-in-weight or gain-in-weight applications. It's easy to operate and calibrate with the aid of large easy-to-read displays; straightforward, tactile-touch keyboards; and software that prompts you through proper set-up and operational procedures. A single Ramsey Micro-Tech 2104 is capable of operating two independent loss-in-weight systems, which ultimately contributes to cost savings. A UL-approved version is also available.
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Ramsey Loss-In-Weight and Volumetric Feeders accurately control the flow of powders, pellets, flakes or granules to critical processes. They handle hot, floodable and difficult material and are unaffected by dust and material accumulation. These feeders can increase your profits by maintaining quality and weighing accuracy, reducing material waste, and improving blend consistency.
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Corrosion-Proof Six mm PTFE Needle Valves
Aalborg® has announced the release of its VT6 6mm PTFE Needle Valves. Simplicity of
design (only 6 components) assures minimal sources of leakage, quick disassembly, and
easy maintenance.
Ideal for relatively high flow ranges while maintaining linear, repeatable flow rate
performance, the VT6 can be used in pressure, non-critical vacuum service, or as shut-off
valves. The unique radially compressed PTFE o-ring feature allows quick compression
adjustments without disassembly.
PTFE and PCTFE materials make the VT6 Valves reliable choices for laboratory and
industrial applications requiring corrosive gas and liquid regulation or high-purity service.
Design Features Include:
- Rigid PCTFE valve spindles virtually eliminate "creeping."
- Panel Mountable.
- 3/8" FNPT ports.
- Fluids contact only PTFE/PCTFE materials.
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Measuring valves are the essence of dualine lubrication systems. They are munted close to the lubrication points and hydraulically operated by pressure from the first and then the second of the two supply lines. On each pressurisation cycles, they indirectly discharge fixed volume of lubricant to the bearing etc.
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Two ranges of line mounting adjustable metering units for use with a dualine system, which discharge a fixed volume of lubricant to half the lubrication points on pressurisation of one line and to the remaining points on pressurisation of the second line.
Benefits:
* Each measuring valve can have from one to four independent operating sections.
* Two normal discharge connections for each operating section reduce the overall cost of the system.
* Any section of the valve can be modified to one discharge, allowing a double sized discharge or an odd number of outlets on the valve.
* Wide stepless adjustment bands for each size of valve allow optimum lubrication delivery to every bearing.
* Positive hydraulic operation with visible indicator of operation.
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Parker’s RB9 Multi-Function Flare Valves are used as service valves in mini-split heat pumps. The valves isolate sections of a system for servicing and provide a means for charging refrigerant into a unit. The valve also holds a restrictor and screen to meter refrigerant and filter debris, increasing system efficiency.
* Inclusion of a restrictor into the valve provides precise refrigerant metering to increase efficiency.
* Noise and vibration through the unit are reduced by inclusion of the restrictor into the valve.
* Inclusion of a screen into the valve filters dirt and debris prior to entering the restrictor, maintaining full flow and enhancing performance.
* Captivated stem-design holds the stem within the valve to prevent it from releasing when the cap is removed or the unit is serviced, reducing the potential for injury.
* Combined functionality of valve, restrictor, and screen reduces component inventory (shut-off valve, field-access gage port, expansion device, filter screen or strainer, line-set connector, check valve, by-pass circuit, & capillary tubes) leading to a reduction in overall installed cost.
* Combined functionality of valve, restrictor, and screen also reduces space requirements within a unit and eliminates braze joints to reduce potential leaks paths.
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Porter Metering Valves are designed for extremely precise control in low flow gas and applications. They are available as valve cartridges, integrally mounted in flowmeters and inline valve assemblies with straight or angle patterned valve bodies. All inline valve assemblies have 1/8" female NPT inlet and outlet ports.
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The Dispensit® Model 1055/1095 is a controlled-flow metering rod valve, designed to produce precise beads of materials of nearly any viscosity.
Features:
- Controlled flow positive displacing metering valve
- Simple control
- Precision hydraulic flow control
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Micro feeders Fine dosing SPA are probably the first on the market to reach such levels of excellence in term of accuracy, short dosing time and flexibility.
The ingredient is dosed in a small swiveling bowl fitted on an accurate load cell. Sensitive parts as motor reducer and scale are installed in a protective casing.
The integrated batch controller optimizes coarse and fine feeding with automatic tolerance control.
Fine dosing concept allows a ratio between coarse/ fine feeding over 30. This figure is a key point to reach fast dosing process and accuracy.
In automatic version, at the end of dosing stage the bowl rotate 360°. The ingredient is then emptied to the application point.
Fine dosing SP A
Quality of measure : 0.02 gram
Standard deviation of dosing : around 0.05 g
Dosing time : from 3 sec.
Fine dosing SP AA
Quality of measure : 0.001 gram
Standard deviation of dosing : around 0.02g
Dosing time : from 3 sec.
Design of these feeders is made in agreement with drug and food industries requests for cleaning.
For more details see pdf data sheet
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Distik
Dispensing technologies for:
- volumetric or time-pressure-based micro-dosing systems for industrial adhesives on components, within automated and semi-automated assembling lines or processes.
Products: cyanoacrylate, UV, anaerobic, acrylate, polychloride, vinyl, etc.
Product lines:
- DISTIK
- DISTIK SILICONE
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LUBE
Dispensing technologies for:
- volumetric or time-pressure-based micro-dosing systems for lubricants on components, within automated and semi-automated assembling lines or processes.
- lubrication of particular kinematic mechanisms.
Products: oils, greases, pastes
Product Lines:
- LUBE OIL
- LUBE GREASE
- LUBE VACUUM
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High accuracy micro feeder Fine dosing SPA - 4A Class
Automatic feeder for small quantities of ingredients (from 5 mg)
Resolution of measure : 0.1 mg
Standard deviation of dosing : around 1 mg
Dosing time : from 3 sec.
Suitable for difficult powders.
Design of these feeders is made in agreement with drug industry requests for cleaning.
For more details see pdf data sheet
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The microdispensers DMP range has been specially designed for a very highly accurate microdosing of all kind of powdery products. They are often used for accurate filling operations with powders.
Its operating principle makes possible a high rate dosing.
Dosing from 0.05 to 150 grams
Accuracy: ±1%
Rate: up to 1 dose per second
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For applications that do not require the flexibility of a robot, mta automation ag proposes a simple dispensing station.
The modularity of our slides and standard elements enables to find a solution adapted to the application.
The programmable electronic control allows the dispensing axes and values to be set.
The stations can be integrated into production lines for various dispensing applications.
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Mikros™ Dispensing Pen
The Mikros Dispensing Pen minimizes waste when making microdeposits of 2-part epoxies and other assembly fluids with short working lives.
The unique 0.25cc reservoir tips are smaller than standard dispensing components and reduce production costs by allowing fast-curing materials to be mixed in smaller batches and consumed before pot life expires. The tips are available in three different sizes to handle a range of fluids and dispensing applications.
When used with an EFD air-powered dispenser, the Mikros Pen will produce consistent fluid deposits as small as 0.007" in diameter.
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The Mikros Dispensing Pen minimizes waste when making microdeposits of 2-part epoxies and other assembly fluids with short working lives.
The unique 0.25cc reservoir tips are smaller than standard dispensing components and reduce production costs by allowing fast-curing materials to be mixed in smaller batches and consumed before pot life expires. The tips are available in three different sizes to handle a range of fluids and dispensing applications.
When used with an EFD air-powered dispenser, the Mikros Pen will produce consistent fluid deposits as small as 0.007" in diameter.
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FEATURE
- Unique eight plate position, small footprint design
. Space savings for all applications
. Seamless integration into a variety of Velocity11 and third party automation systems
- Simultaneously pipette while other plates changed
. Impressive throughput and significant reduction in assay time
- Pipetting range of 100 nl to 200 ul
. Save on costly reagents and compounds
. Miniaturize your assays with confidence
- Pipette Heads are easily interchanged in < 2 minutes
. Flexibility: One system can scale to handle a variety of applications
. No service person required for a head change.
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60% smaller and 70% lighter than typical dispense valves, the 702 Series is ideal for applications where space is tight or installation on movable arms where size and weight must be considered.
For use with:
- UV- and light-cure adhesives
- Resins
- Solvents
- UV coatings
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The MV-0810NM-A needle valve is designed for precision dispensing of all types of fluids in minute to moderate shot sizes. Its pencil-type grip makes the valve suitable for either hand held or automatic applications. Shot sizes may be fine tuned by turning the adjuster at the top of the needle valve.
Features
• Available in Stainless Steel and Plastic
• Stroke adjustment to fine-tune shot size
• Lightweight design for hand-held dispensing
• Positive shut-off
• Micro-shot deposits
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Characteristics of the motorised volumetric dispenser for mono-component products (MVD):
- Simple setting of the quantity to be dispensed via a regulator ring (manual)
- Adjustable dispenser volume from 0.1 mm³ to 100 mm³
- Volumetric dispensing without valve
- Ceramic dispensing piston and cylinder (Al2O3)
- Repeatability of the dispensed volume > 99%
- Liquid or viscous products dispenser
- No seals (no wear-and-tear)
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The SILCO-MIX range of systems are compact, pneumatic or hydraulically driven piston pump metering and mixing systems.
They are used to continuously apply medium to high viscosity multiple component silicones with a fixed mixing ratio of 100:100.
The material can be abrasive as well as filled.
The material is supplied by feed pumps from original drums.
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These multi-spiral powderers have been specially designed for extracting, dosing and distributing in a constant and uniform manner, powdery or granular products on a retrieving element (belt conveyor, plate, etc.)
Treated products: grated cheese, flaked almonds, candied fruits, powders, culinary herbs, raisins.
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Precision needle valve applies low-viscosity fluids in accurate, repeatable amounts. Because the stainless steel needle seats in the tip adapter, there is virtually no dead fluid volume between shots.
For use with:
- Accelerators
- Marking inks
- Silicone oils
- Solvents
- UV-cure adhesives
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Characteristics of the numerical volumetric dispenser for two-component products (NBD):
- Simple setting of the dispensing parameters via numerical controller
- Adjustable dispenser volume of 2 x 0.1 mm³ to 1250 mm³
- Volumetric dispensing without valve
- Ceramic dispensing piston and cylinder (Al2O3)
- Repeatability of the dispensed volume > 99%
- Liquid or viscous products dispenser - No seals (no wear)
- Mixing by dynamic or static mixer
- Low-volume dynamic mixing chamber (interchangeable)
- Programmable dispensing ratio
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“HIGH-PRESSURE DOSING MACHINES”
The use of high-pressure technology offers many and significant advantages:
· chlorinated solvents are no longer required
· improvement in working conditions
· safeguarding and protection of the global environment
· more efficient production processes
· foams with higher quality and better physical and mechanical properties
· significant raw material saving.
“LOW-PRESSURE DOSING MACHINES”
Cannon low-pressure machines can solve the production problems of the small and medium-size business, being very well conceived and at the same time having advanced technical and technological content.
Their use has certainly been shrunk by the advent of more modern techniques and equipment, however the specific nature of some applications (low outputs, small production volumes) requires features, that only the low-pressure foaming process can offer.
For those reasons and also thanks to the development of alternative and more ecological washing systems based on chloride-free solvents, the low pressure technology it is still nowadays the most suitable, competitive and some times, the only possible solution.
Cannon basically offer a complete range of machines, which can be used in a wide range of different foaming processes:
· general purpose low pressure units
· micro shots and low output units
· high output units
· specialties - specific application niches do not only require to meter and mix polyurethane formulations, to meet these particular needs Cannon engineered dedicated mixing heads, dosing equipment and processes able to pour other type of mixture with different physical properties such as silicone, elastomers and epoxy resins.
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Versatile, inexpensive manual dispensers are ideal for touchups, low-volume assembly and field work. They can be used with all EFD syringe barrels, pistons and tips.
The DispensGun® features 10:1 mechanical leverage that makes it easy to dispense thick materials like greases and silicones without hand fatigue. A clean cutoff when the trigger is released prevents oozing between fluid applications.
Designed for use with EFD syringe barrels and pistons, HPD Hand Plungers provide a clean, comfortable alternative to squeeze bottles and hand syringes.
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Dispensing: Equipment, Accessories
