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JLT Series Flocculators

Digital flocculators featuring adjustable stirring speed and timer, a powerful brushless motor, and an illuminated back panel. Available in 4- and 6-position, the JLT series provides standard and repeatable conditions for Jar Test and Leaching Test.
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3 years warranty
JLT 4F105A0108
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Digital Flocculators for Accurate Jar Testing and Leaching Tests

Digital Flocculators for Accurate Jar Testing and Leaching Tests
The JLT Series is specifically designed to deliver efficient and reliable performance for both jar testing and leaching tests. Available in 4- and 6-position models, these digital flocculators provide precision and flexibility in water treatment analysis.

Equipped with an intuitive digital interface, users can easily adjust stirring speeds and timer to set testing parameters precisely. With consistent speed and timing across all positions, repeatable conditions from sample to sample are ensured.

The illuminated back panel improves sample visibility during the flocculation process, making it easier to monitor results in real time. Additionally, thanks to the timer, the JLT series ensures consistency and repeatability during unattended operation, making it ideal for productivity-driven water treatment plants’ labs. 

User-Friendly Design and Durability

User-Friendly Design and Durability
JLT flocculators are designed for user convenience and long-lasting durability.

The high-visibility LED displays allow speed and time to be easily set up and monitored. In addition, the stainless-steel stirring rods can be adjusted in height thanks to a self-blocking chuck that ensures secure and reliable operation.  

Powered by a robust brushless motor, JLT flocculators deliver precise and reproducible stirring speeds from 10 to 300 rpm, ensuring consistent performance. VELP’s SpeedServo™ torque compensation technology further enhances control by maintaining a constant speed, even when the viscosity of the sample changes.

Using corrosion-resistant materials ensures durability and stirring quality across all test positions, making the JLT series a reliable solution for any lab.

Comprehensive Solutions for Water and Wastewater Treatment Plants

Comprehensive Solutions for Water and Wastewater Treatment Plants
Jar Testing simulates coagulation and flocculation processes in water treatment, allowing operators to fine-tune chemical dosages for optimal plant performance. The leaching test is critical for assessing the environmental impact of solid materials by analyzing how contaminants migrate into water.

With the JLT Series, VELP offers a comprehensive solution that delivers reliable, accurate results across both types of analysis, ensuring improved water quality and environmental safety.

Models

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TECHNICAL DATA

Construction material: Epoxy painted metal structure
Motor: Brushless
User Interface: Digital
Models: JLT 4 4 positions with same speed for each rod
JLT 6 6 positions with same speed for each rod
Lighting system:  Illuminated back panel
Stainless steel stirring rods: Adjustable in height
Electronic speed control: From 10 to 300 rpm
Speed setting interval: 1 rpm
Timer: 1÷999 min or 1÷99 hours
Power: JLT 4 19 W
JLT 6 19 W
Dimensions (WxHxD): JLT 4 655x404x296 mm (25.7x15.9x11.6 in)
JLT 6 935x404x296 mm (36.8x15.9x11.6 in)
Weight: JLT 4 13 kg (28.6 lb)
JLT 6 17 kg (37.4 lb)

Brochures & Leaflets

VELP Scientifica invites you to download brochures and leaflets in order to explore our premium quality solutions and to have all the major key arguments, features and specifications of a product in your hands, in any place, and at any time.
JLT - Leaflet
Learn more about our digital flocculator in 4 and 6 positions with timer and illuminated back panel to allow standard conditions to be met during Jar Testing. 
Laboratory Equipment - Line Brochure [EN]
VELP Scientifica invites you to download line brochure to explore our premium quality solutions.
Product Portfolio - Brochure [EN]
VELP Scientifica invites you to download product portfolio brochure to explore our premium quality solutions.

Instruction manuals

Download the instruction manual that contains all the main technical specifications of the instrument and the necessary information for its correct use.
JLT4 - JLT6 instruction manual
Before using the unit, please read the instruction manual carefully.

Comparison tables

Select the category of products you are interested in and this tool will give you an easy overview of what is available at VELP in order to find the product that is perfect for you. These comparison tables provide a brief description with side by side features from basic equipment to the most advanced analytical solutions.
VELP Flocculators Comparison Table
Pick a choice among our comprehensive range of flocculators with multiple stirrers, providing standard conditions and repeatable results during pilot-scale tests to simulate the coagulation/flocculation process in a water treatment plant.

Certifications

Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.
CE Declaration of Conformity VELP Scientifica Flocculators/Jar Testers
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety, matching EU consumer safety, health or environmental requirements.
VELP Scientifica Srl
Via Stazione, 16
20865 Usmate (MB) - Italy
Tel. + 39 039 628811
VELP Scientific, Inc
40, Burt Drive, Unit #1, Deer Park
NY 11729 - U.S.
Tel. +1 631 573 6002
VELP China Co. Ltd.
Room 828, Building 1, No.778 Jinji Road
Pudong New Area, Shanghai, China
Tel. 400-089-8029

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