LFA VM Lab Mixer User Manual
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LFA VM Lab Mixer User Manual

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VM
Lab Mixer User Manual
®
We don't just sell machines—
we provide service.
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Summary of Contents for LFA VM Lab Mixer

  • Page 1 Lab Mixer User Manual ® We don’t just sell machines— we provide service.

  • Page 2: Copyright Notice

    Copyright Notice © LFA Machines Oxford Limited, published in 2022 by LFA Machines Oxford Limited 2022. Registered in England and Wales, company number 08428898, registered office for service Demar House 14 Church Road East Wittering, Chichester, West Sussex, PO20 8PS.

  • Page 3: Important Safety Information

    Important Safety Information READ THIS BEFORE OPERATING MACHINE Intended Use General Hazards The intended use of this machine is to In the case of an emergency during thoroughly blend dry raw materials. operation, immediately push the Potential misuse of this machine includes: Emergency Stop button.

  • Page 4: Important Safety Information

    Proposition 65 warning label. Warning for Explosive Material This machine is not explosion proof. LFA recommends that you test your materials' explosivity before running them through this machine. If your materials are indeed explosive, do not use them with this machine.

  • Page 5: Installation And Safety Assessment

    LFA Machines has decided that we can not possibly foresee all of the environments or situations in which this machine could be used or installed and therefore have determined that the end user must install the machine in a way that is appropriate and safe for its use.

  • Page 6: Table Of Contents

    Installation and Safety Assessment Lab Mixer Components ® Lab Mixer Electrical Components ® Preface Training Off-Site Training Training via Video Chat/Phone LFA Articles LFA Videos Installation Tools and Materials Needed The Appropriate Workstation for the Machine Positioning the VM ® Lab Mixer Controls...

  • Page 7: Vm ® Lab Mixer Components

    Lab Mixer Components ® 1. Feeder Points 4. Hopper 2. Bushing 5. Control Console 3. Discharge Chute...

  • Page 8: Vm ® Lab Mixer Electrical Components

    Lab Mixer Electrical Components ® 1. Start machine operation 4. Emergency stop 2. Stop machine operation 5. Set operation time 3. Operate machine in small increments...

  • Page 9: Preface

    Preface The VM Lab Mixer is an excellent option for R&D and small batch production. With interchangeable ® hoppers available in sizes of 2 L, 10 L, and 15 L, the VM Lab Mixer offers flexibility in its range ® of small batch production sizes.

  • Page 10: Training

    There are several methods to prepare you for working with the VM ® Lab Mixer. Off-Site Training LFA offers free training at our UK, USA, and Taiwan facilities for all our customers and their teams. For more information, go to https://www.lfatabletpresses.com/services Training via Video Chat/Phone Using an online video chat system, an LFA technician can interact face-to-face with you and assist with your understanding of the machine.

  • Page 11: Installation

    Installation Tools and Materials Needed Before you install and operate the VM Lab Mixer, it is best to have the following tools and ® materials on hand for general operation and maintenance: • Engine hoist/pallet jack • Lifting strap • Hammer •...
  • Page 12 ® to be installed in a cage. A risk assessment is required to be conducted before installation and operation of the machine. LFA Machines is able to advise on this. Please contact us for more information: Phone Phone +44 01869 250234...

  • Page 13: Positioning The Vm ® Lab Mixer

    VM Lab Mixer. ® LFA does NOT recommend carrying the machine manually but rather with a engine hoist or pallet jack. At least two people should be involved (one operating the engine hoist/pallet jack and one stabilizing the machine) in removing the machine from the shipping container and placing it in the workspace.

  • Page 14: Controls

    Controls Basic Components Base ® Feeder Points Hopper Main Cam Drive Shaft Discharge Chute A description of the principal components follows: • The Feeder Points are where the dry materials to be mixed are poured. • The Hopper contains the powder that is mixed. •...
  • Page 15 ® Lab Mixer Process The basic mechanism of the VM Lab Mixer involves filling one of the Feeder Points, selecting a ® running time, and turning on the machine. Filling the Hopper with Powder The Hopper is filled with powder (up to 2/3 full) through one of the Feeder Point's inlets. Rotating the Hopper to Mix the Powder After the Hopper is filled with powder, the machine is set to run a certain amount of time.
  • Page 16 4. Divide the weight of the powder by the volume of the measuring apparatus in mL. Resources for Calculating Bulk Density To help with calculating bulk density of a powder, LFA offers two resources on our website. To watch a video on how to calculate the loose bulk density of a powder, go to https://www.
  • Page 17 How to Mix Powder with the VM Lab Mixer ® Tools and Materials Needed • Raw material formulation • VM Lab Mixer ® • Container for mixed powder • Safety goggles • Disposable latex/rubber gloves (for food grade products and to protect hands from grease) •...

  • Page 18: Settings And Adjustment

    Settings and Adjustment Some VM Lab Mixer settings can be adjusted. ® Operation Time The VM ® Lab Mixer has a setting that will allow the Hopper to rotate for a determined amount of time. The operation time should be calculated by mix validation, which is establishing that a specific process or equipment will consistently produce a product or result.

  • Page 19: Maintenance

    • If the machine is not used for more than a week, cover it with a plastic sheet. Lubrication Regularly greasing your machine is vital to prolonging its operational life. Parts that are not greased properly can make the machine seize up and cause major problems later. LFA recommends maintaining a lubrication schedule for your VM ®...
  • Page 20 2. Inspect the Gearbox's oil window on its side and see if the oil is below the minimum line. If it is, top it up with 460 Grade Worm Oil.
  • Page 21 Lubrication Schedule LFA recommends the following VM Lab Mixer parts to be lubricated according to the ® following frequency: Type of Part Location Image Frequency Lubricant Apply grease in the following situations: NLGI Bushing that 1) After every 100 Grade 2...

  • Page 22: Dismantling For Repair And Replacement

    To prevent any delays in your production, it is best practice to keep extra parts just in case. Warranty To access LFA's warranty policy, go to https://www.lfatabletpresses.com/warranty If your part is eligible for warranty, have your part’s serial number on hand and please contact LFA: Phone Phone +44 01869 250234 +1 (682) 312-0034...

  • Page 23: Wear Parts And Causes Of Damage

    Wear Parts and Causes of Damage Wear Part Cause of Damage V Belt The V Belt for the VM Lab Mixer drives all of ® the power from the motor to the Hopper via the Gearbox. Overtime, this will lose some of its tension and wear, causing the belt to slip, which affects the mixer's ability to handle the maximum weight capacity.
  • Page 24 Input Gaskets and Output Gasket The Input Gaskets are located on top of both sides of the Hopper. The Output Gasket is located in the discharge chute's opening. The inlet/outlet lids and locking rings must be removed in order to access the Input Gaskets.
  • Page 25 Timer The Timer on the VM Lab Mixer can be removed and replaced. To do this, the Timer's plastic ® wires must be disconnected from the machine. Tools and Materials Needed • Crosshead screwdriver • New Timer • Disposable latex/rubber gloves (for food grade products and to protect hands from grease) •...
  • Page 26 Replace the Timer 4. Insert the new Timer into the machine. 5. Clip the new Timer onto the machine's wiring. 6. Place the top panel back on the base and resecure its screws with a crosshead screwdriver.

  • Page 27: Troubleshooting

    Troubleshooting Sometimes unavoidable issues will occur while operating the VM ® Lab Mixer. Fortunately, there are several methods to remedy these issues. Common Machine Issues Symptom Possible Cause Possible Solution Reduce the amount of powder in the The fill volume in the Hopper is too Hopper (does not exceed full).

  • Page 28: Cleaning

    VM Lab Mixer thoroughly to prevent rusting and cross contamination. ® LFA recommends that the machine be cleaned after each operation. Tools and Materials Needed • Set of metric Allen keys with ball ends • Crosshead screwdriver •...
  • Page 29 Clean the VM Lab Mixer ® 6. Take a clean cloth and carefully wash the Hopper thoroughly with soapy water. 6.1 Note: Use the toothbrush for difficult-to-remove debris. 7. Dry the Hopper immediately after it is cleaned and rinsed. 8. Sanitize the Hopper with a clean cloth. Clean the Base 9.

  • Page 31: Storing The Vm ® Lab Mixer

    Storing the VM Lab Mixer ® After its thorough cleaning, the VM ® Lab Mixer needs to be stored in the proper conditions. It is important to store it in an environment in which the machine is safe from rusting. The VM ®...

  • Page 32: Appendix

    Appendix Glossary Term Definition Any substance or mixture of substances used API/Active Pharmaceutical Ingredient that is an active ingredient in the drug product. The v-shaped container in which powder is Hopper mixed. See excipient. Binding agent An inactive substance that serves as the vehicle Excipient or medium for a drug or other API.

  • Page 33: Description Of Vm ® Lab Mixer Parts

    Description of VM Lab Mixer Parts ® Hopper The Hopper is the container in which the powder is contained and later mixed. The approximate fill volume capacity of the Hoppers is a range of 2 L, 10 L, and 15 L. Input and Output Gaskets The Input Gaskets are a rubber seals that are located on top of the Hopper and around the...

  • Page 34: Food Grade Point Of Contact Parts

    Food Grade Point of Contact Parts Contact Part Material Hopper (including feeder points and discharge SUS304 chute) Technical Specifications Model Lab Mixer 2 Lab Mixer 10 Lab Mixer 15 ® ® ® Barrel capacity 2 L / 0.07 ft 10 L / 0.35 ft 15 L / 0.53 ft Approximate 0.8-1.2 L / 0.03 - 0.04 ft...

  • Page 35: Maintenance Checklist

    Maintenance Checklist Before Operation □ Visually inspect the VM Lab Mixer and the parts. ® □ Ensure all nuts and bolts are tight. □ Visually inspect lubrication points and grease where necessary. □ Inch/jog the machine without powder. □ Visually inspect electrical wires for any damage. During Operation □...

  • Page 36: Diagrams

    Diagrams Lab Mixer Electrical Diagram ®...
  • Page 37 Diagrams Lab Mixer Electrical Diagram 2 ®...
  • Page 38 LMH 2 Dimensions ®...
  • Page 39 LMH 10 Dimensions ®...
  • Page 40 LMH 15 Dimensions ®...

  • Page 41: Resources

    We regularly upload videos to give LFA Website you a visual aid that will hopefully support you In order to aid you in your powder mixing, LFA in your powder mixing efforts. To watch our Machines maintains a website that offers a videos, visit https://www.youtube.com/channel/...
  • Page 42 LFA MACHINES Copyright © 2022 by LFA Machines www.lfamachines.com Germany Taiwan United Kingdom United States Business Parc Am Unit 4B 6601 Will Rogers Blvd 7F.-5, No. 2, Sec. 2 Trippelsberg 92 Murdock Road Fort Worth Taiwan Blvd., West Dist., Düsseldorf...

This manual is also suitable for:

Vm lab mixer 2Vm lab mixer 10Vm lab mixer 15

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