The Timber Industry

The timber industry places high demands on the productivity and availability of its plants.  UWT has experience of these situations and their challenges and can offer the right sensor for level and point level control - sensors that are robust, durable and maintenance-free.   

The challenge

Electromechanical system NB4200 in sawdust

Our customer was looking for a reliable and cost-effective level measurement in different silos in which sawdust is stored. The challenge was to guarantee a reliable measurement and to enable easy commissioning. Above all, the sensor had to work reliably independently of the dusty environment. In Sweden it is common for outside temperatures to fall well below 0 ° C in winter. Therefore, the system had to be insensitive to low temperatures.

Our solution

NB 4200 in the wood sector

The electromechanical measuring system NIVOBOB NB4200 is optimally designed for use in wood flour. It works with a stainless steel tape, which is cleaned from the adhering dust during the measurement by a tape cleaner. Thus, the housing remains dust-free. In addition, the tape is almost maintenance-free with an exchange cycle after 500,000 measurements. The measuring range of 30m is sufficient for most silos. It provides a reliable measurement result and works independently of the very dusty conditions in the silo. The integrated thermostat-controlled heating ensures a reliable function even at temperatures well below the minus range.

Products

With the following products our customer has solved this measurement task optimally:

NB 4200 Tape Version

Continuous Level Measurement

Suitable for most bulk solids.
•Integrated tape cleaner to remove aherent materials.
•Mounting with threaded or flange connection.
•Measuring range up to 30m.
•Convenient level monitoring via 4-20mA signal together with Nivotec 3500.

The challenge

A leading manufacturer of wood chip products in Germany needed reliable and long-lasting level switches for numerous storage silos filled with wood shavings. The wood shavings partly have a high humidity and exert a great mechanical pressure on the sensor boom. Therefore, a high mechanical strength is necessary as well as a tightness against moisture, but also dust. The sensors for full, required and empty message can be mounted laterally via flange connection.

Our solution

RN 3003 in the wood sector

The ROTONIVO RN3003 series meet these high requirements. The sensor boom is very robust and thanks to its angle bracket provides good protection for the sensitive, rotating shaft of the rotary paddel switch. It is dust-tightly ball-bearing extremely durable. With these features the RN3000 series is predestined for such applications in may areas of the wood sector.

Products

With the following products our customer has solved this measurement task optimally:

RN 3003 Angled Extension

Full, Demand, Empty Detector
Right angled gearhead with extension tube

  • Horizontal installation.
  • Mechanically robust level switch for heavy bulk solids.

The Challenge

NB 4100 in the wood sector

A wood processing company from the Russian Federation manufactures various kinds of pressed wood boards. There was the requirement to realize the content measurement in a storage silo after drying and crushing. Sawdust is stored, which is very dry and dusty. Conditions that can not be easily measured by all measuring principles. The temperatures in winter are often far below minus and require both mechanics and electronics.

Our Solution

NB 4100 in the wood sector

The electromechanical measuring system NIVOBOB NB4100 with integrated heating is the best solution to be used in the northern regions of Russia. It provides a reliable measurement result and, thanks to a multilingual menu and standard signal output 4-20mA, can be parameterized and commissioned very simply and quickly as well as integrated into the existing process control. The NB4100 can be used with housing heating up to a temperature of -40 ° C. In addition, the measurement remains unaffected by dust and a low DK value. All in all the best solution for this measurement task.

Products

With the following products our customer has solved this measurement task optimally:

NB 4100 Rope Version

Continuous Level Measurement

  • Suitable for use in most granular and coarse bulk materials.
  • Threaded or flange mounting.
  • Measuring range up to 30m.
  • Convenient level monitoring via 4-20mA analog signal together with price competitive Nivotec 3500.

The challenge

Our customer operates a wood processing factory in the Moscow region. He requested limit switches for a great plenty of storage silos filled with saw dust and wood dust. The sensors from other manufacturers always recorded errors due to the change in the material density when changing the type of wood in the process.

Our solution

VN 4030 in the wood sector

The customer was able to solve this problem with the VIBRANIVO VN4030 series vibration sensor. As long as the bulk weight of the sawdust is greater than the sensitivity of the sensor, it does not matter which kind of wood is used in the process. The VN4030 can measure bulk solids from a bulk density of 30g / l and is extremely robust. It is usually installed sideways slightly obliquely downwards in the container wall, so that the wood flour can slide off the fork as the level falls. This increases operational safety. In addition, the standard version is suitable for a temperature range of -40 ° C to + 150 ° C, which is an advantage in these earth regions.

Products

With the following products our customer has solved this measurement task optimally:

VN 4030

Full, Demand, Empty Detector
Tube extension version

  • Vertical, horizontal and oblique installation.
  • Cost competitive level detector.
  • Able to withstand high mechanical loads due to short extension length.
  • Shaft length up to 4000mm available.
  • Flexible height adjustment.

The challenge

Level limit measurement in a wood pellet press

A plant builder in the wood industry in Romania asked UWT for a reliable level control in a briquetting press. The limit switch is intended to regulate the supply of the sawdust and thus ensure material supply in the system. Sawdust has a low DK value and is relatively light. The application is dusty and requires a DustEx approval.

Our solution

RN 3 in sawdust

The rotating paddle sensor ROTONIVO RN3001 is the solution for this application. With a larger vane area, it achieves the necessary sensitivity for the low bulk density. The response time can be reached here with a faster motor with 5U / min and a rectangular vane. The sensor is dust-tight and has all international approvals for use in dust-proof areas. The ROTONIVO is an allrounder in the wood industry.

Products

With the following products our customer has solved this measurement task optimally:

RN 3001

Full, demand, empty detector
Short version

  • Vertical, horizontal and oblique installation.
  • Compact boom length, from 70mm.
  • Particularly suitable for small process vessels.

The challenge

Contents measurement in sawdust

Our customer is a producer of MDF plates. They requested reliable level control in wood snippets and saw dust for a number of silos in their factory. Particularly, they expected reliability and an easy set-up and parameter setting of the level control system. Former measurement systems of other producers have not been working due to the difficult material attributes, like low dielectric constant, dusty environment, sticky conditions, high angle of repose and so on.

Our solution

NB 3 in the wood sector

The UWT system NIVOBOB NB3200 was the solution in this application. It offers an electromechanical level measurement, which reliably works independently of the dielectricity, dust development, adhering product or even steep angle of repose. It has an integrated tape cleaner and protects the housing from contamination during the measurement. The NB3200 provides over 500,000 measurement cycles of maintenance-free and reliable measurement technology in this application. Interfaces such as Modbus RTU, Profibus PA or 4-20mA make it compatible with most process control systems.

Products

With the following products our customer has solved this measurement task optimally:

NB 3200 Tape Version

Continuous Level Measurement

  • Suitable for use in most bulk materials.
  • Integrated tape cleaner to remove aherent materials.
  • Mounting with threaded or flange connection.
  • Measuring range up to 50m.
  • Convenient level monitoring via Modbus interface together with cost competitive Nivotec 3500/4500.

The challenge

NB4200 in wood chips storage silo

A woodworker in Sweden needed a suitable level measuring system for his large storage silos for wood shavings. The sensors are exposed to large temperature differences depending on the season and weather conditions. Within the process is a high dust development. Thus, dust can adhere to the sensor and affect the function. The surface of the wood chip to be measured has steep angle of repose and is very absorbent. The measuring range is about 15-20m.

Our solution

NB 4200 in the wood sector

The customer decided for an electromechanical measuring systems. The NB4200 was used. It provides for the electronic evaluation a 4-20mA signal, counting pulses or a Modbus RTU interface. A thermostat-controlled heating system has been integrated for stable temperatures in the housing. A tape cleaner, which is active during the measurement, helps against the dust adhering to the measuring tape. The sensor NB4200 has a measuring range of 30m and covers the requirements in these silos. The very high lifetime of the tape with 500,000 measuring cycles even when the silo is empty makes the NB almost maintenance-free in this application.

Products

With the following products our customer has solved this measurement task optimally:

NB 4200 Tape Version

Continuous Level Measurement

Suitable for most bulk solids.
•Integrated tape cleaner to remove aherent materials.
•Mounting with threaded or flange connection.
•Measuring range up to 30m.
•Convenient level monitoring via 4-20mA signal together with Nivotec 3500.

Capanivo solution for wood pellets prebin
Capanivo solution for wood pellets prebin

The challenge

Our customer in Latvia, a manufacturer of wood pellet boilers, was looking for suitable sensors for the full and empty detection in pellet feeders. Rotating paddle detectors are used as standard. A lower switching point of the emptying device was required in this application in order to empty the container further, so no paddle switch could be used. It was necessary to search for a sensor with a shorter extension length.

CN 4020 in the wood sector

Our solution

The solution was the capacitance switch Capanivo CN4020 with the possibility to setup the sensitivity and switching delay. This compact sensor can be installed at the right position in the hopper with a special adapter. The Capanivo could work with dry and as well with wet pellets. The customer also integrated the sensors in their SCADA system and use the switching delays to synchronize the processes to the best efficiency. The flexible sensitivity solves the problems with the buildup, which happens by the wood pellets. The Capanivo has also the best price performance. It is the best solution for this process hopper.

Products

With the following products our customer has solved this measurement task optimally:

CN 4020

Full, Demand, Empty Detector
Short version

  • Vertical, horizontal, oblique installation.
  • Very short shaft length available...from 155mm.
  • No calibration required.
  • Active coat compensation.

The challenge

Our customer in Chile produces wood chipboards and needs control in a pipe system two critical points. The rest liquid material composed with water, glue resin, oil and sawdust was very sticky keeping the probe with constant build up. The process has 50ºC with turbulence and constant filling in a steel pipe of 1,5 meter.   

RF 3200 in the wood sector

Our solution

In this case the most suitable solution was our RFnivo serie 3200 Radio-Frequency Capacitive level sensor, with active shield able to avoid false alarm caused by the sticky material. The probe has high resistance with 300mm made of reinforced PPS and Stainless Steel, it resists up to 240ºC and 25 Bar. This was the perfect solution for a complex process with different materials and environment.

Products

With the following products our customer has solved this measurement task optimally:

RF 3200

RF3200 Heavy Duty Version

Full, Demand, Empty Detector

  • Able to withstand high mechanical stress and strong tensile force.

Shaft selectable as
- Rod version (vertical, horizontal, oblique installation)
- Cable version (vertical installation)

Both versions are available as remote versions (i.e. for use in applications/processes with heavy vibration).

NB 4200 in the wood sector

The challenge

One of the world's largest manufacturers of wooden boards needs to control the content of wood chips in an intermediate silo with a height of 10m. Due to precision necessity the measure point is close to the screw conveyor, the environment is dusty and with condensation. Another aspect is that the measurements are made manually, the staff are put at risk.

NB 4200 in the wood sector

Our solution

Our solution in this case was the Nivobob 4200 series with 15 meters measure tape and integrated tape cleaner able to works with very dusty environment. Due to the simple mechanical measurement principle it can works without any interference of condensation or from the process itself and has a trustable exact measurement point. This solution was installed in many silos in the plant and has also the personal risk reduced.

 

 

Products

With the following products our customer has solved this measurement task optimally:

NB 4200 Tape Version

Continuous Level Measurement

Suitable for most bulk solids.
•Integrated tape cleaner to remove aherent materials.
•Mounting with threaded or flange connection.
•Measuring range up to 30m.
•Convenient level monitoring via 4-20mA signal together with Nivotec 3500.

Contact

UWT (UK) Ltd

UWT (UK) Ltd
20 Main Road
Dorrington
Shropshire
SY5 7JW

Tel: +44 (0)1743 718883
Fax:+44 (0)1743 718883
salesuwtuk.com

Contact
You can also get in touch via our contact form.

UWT Locations

Our offices - worldwide

UWT worldwide

UWT GmbH - Level Control

The UWT Headquarter in Betzigau

Westendstr. 5
87488, Betzigau, Deutschland

Tel: +49 831 57123-0
Fax: +49 831 57123-10

Contact: Kevin Walter
E-Mail: kevin.walteruwt.de
Website: www.uwt.de

Adpro-Instruments / Member of UWT Group

Foundation of a production plant in Malta

Second UWT production plant in:

Paola, Malta

UWT (UK) Ltd

Foundation of the sales subsidiary UWT (UK) Ltd.

20 Main Road, Dorrington
SY5 7JW, Shrewsbury, Shropshire, UK

Tel:  +44 1743 718883
Fax: +44 1743 718883

Contact: Graeme Hughes
E-Mail: graeme.hughes(at)uwtuk.com
Website: www.uwtuk.com

UWT Level Controls LLC

Foundation of the joint venture with "UWT LLC"

4445 Malone Road
P.O. Box 18769
38118, Memphis TN, USA

Contact: Don Crader
Tel: +1 901 531 6090
Fax: +1 901 531 6095

E-Mail: info@uwtlevel.com
Website: www.uwtlevel.com

UWT Level Control India Pvt. Ltd.

The subsidiary in India

Head Office:
UWT Level Control India Pvt. Ltd.
Plot No 52 Udyog Vihar Phase-VI
Sector 37 122001
Gurugram-Haryana, India

Phone: +91 124 412 1600
Fax: +91 124 412 1611 

Homepage: www.uwt-india.com

Contact: Sumit Majumder
Managing Director
sumit.majumderuwt-india.com
Mobile: +91 9830879115

Communication:
Flat – 3B, 9 Majhipara Road
James Long Sarani
Kolkata – 700 063, India


North Regional Office:
UWT Level Control India Pvt Ltd.
Plot No 52 Udyog ViharPhase-VI
Sector 37 122001
Gurugram-Haryana, India

Phone: +91 124 412 1600
Fax: +91 124 412 1611 

Contact: Prakhar Kapoor
Asst. Area Manager
prakhar.kapooruwt-india.com
Mobile: +91 971 721 3939

West Regional Office:
UWT Level Control India Pvt Ltd.
RK Plaza, Survey No. 206/3
Plot No. 17 Viman Nagar
Pune-411014, India

Phone: +91 202 674 1000
Fax: +91 202 674 1001 

Contact: Vikas Kirange 
Area Manager
vikas.kirangeuwt-india.com
Mobile: +91 8698904455 

East Regional Office:
UWT Level Control India Pvt. Ltd.
Flat – 3B, 9 Majhipara Road
James Long Sarani
Kolkata – 700 063, India

Contact: Sunirmal Bardhan
Regional Manager
sunirmal.bardhanuwt-india.com
Mobil: +91 9830400715

South Regional Office:
UWT Level Control India Pvt. Ltd.
No-23, 21st Street
J B Estate, Avadi
Chennai 600 054, India

Contact: Mr. J. Yuvaraj
Asst. Area Manager
yuvarajuwt-india.com
Mobile: +91 9840504819

Central India Office:
UWT Level Control India Pvt. Ltd.
House No. E-13, First Floor
Vardhman Green Park, Ashoka Garden
Bhopal, Madhya Pradesh 462023

Contact: Mr. Gaurav Kaushik
Asst. Area Manager
gaurav.kaushikuwt-india.com
Mobile: +91 9650695507

UWT RUS Level Measurement LLC

Foundation of the sales subsidiary UWT RUS Level Measurement

Dorozhnaya St., 8 b. 1, Of. K2-220
117545 Moskau
Russian Federation

Phone: +7 499 723-75-73

Contact:
Andrey Kireev
Phone: +7 915 400 3621
andrey.kireevuwtlevel.ru

Stanislav Biryukov
Phone: +7 926 60 60 240
stanislav.biryukovuwtlevel.ru

Homepage: www.uwtlevel.ru

 

 

UWT International Trading (Shanghai) Co., Ltd.

UWT China moves into new premises

1st Floor, Plant No. 7,
Lane 333, Zhujian Road
Huacao Town, Minhang District
201107, Shanghai, China

Tel: +86 216 4684193
Fax: +86 216 4696707

Contact: Wei Gao
E-Mail: wei.gao(at)uwt.cn
Website: www.uwt.cn