OFITE 120-147 Mag Drive

May 15, 2024
OFITE

OFITE 120-147 Mag Drive

Product Information

Specifications

  • Product: Mag Drive
  • Part No.: #120-147
  • Designed for: High-Temperature High-Pressure Consistometers
  • Advantages: Prevents leakage, contamination, and heat from packing friction
  • Operation: External magnets rotate internal magnets attached to the drive shaft
  • Assembly: Outer magnet assembly and inner shaft assembly

Product Usage Instructions

Maintenance
Before performing any work on the Mag Drive, ensure the work area is clean and free of metallic items.

Cleaning

  1. Remove the cover and gland from the bottom of the Mag Drive.
  2. Pull the slurry cup table and rotor assembly up through the opening.
  3. Clean all abrasive particles from the rotor assembly on a clean, flat, nonmagnetic surface.
  4. Flush the cell and housing with mineral oil, using a soft brush for inner cleaning.
  5. Thread the slurry cup table back onto the rotor shaft assembly.
  6. Pour a small amount of mineral oil into the cell to cushion the rotor assembly during insertion.
  7. Insert the rotor assembly into the Mag Drive housing, pressing down on the slurry cup table until it touches the top bearing.

Outer Drive Assembly
If disassembling the outer drive assembly:

  • Remove top and bottom retainers only for flushing and cleaning to keep magnets in place.
  • Do not attempt to install new magnets; send the drive magnet assembly back to OFITE for service.

Rotor Repair
If suspecting rotor bending:

  1. Mount the rotor in a lathe carefully.
  2. Turn the lathe slowly, and use an indicator to find and mark the high spots if bent.
  3. Straighten by tapping the high spot with a mallet and wood block.
  4. Repeat until the high spot is less than .005.

Bearing Maintenance
Inspect bearings every 750 hours of operation for damage and wear. Replace as needed.

FAQ

  • Q: How often should I clean the Mag Drive?
    A: Clean the Mag Drive once a week for optimal performance.

  • Q: When should I inspect the bearings?
    A: Inspect the bearings for damage and wear them every 750 hours of operation and replace them as necessary.

Introduction

  • The OFITE Mag Drive is designed for High-Temperature High-Pressure Con-seismometers. It has several advantages over traditional packed drives, such as preventing leakage, contamination, and heat from packing friction.
  • The OFITE Mag Drive uses external magnets to rotate internal magnets that are attached to the drive shaft.
  • The assembly consists of two parts: an outer magnet assembly and an inner shaft assembly.

Specifications

  • Maximum Allowable Working Pressure: 40,000 psi (275.8 MPa)
  • Maximum Temperature: 600°F (315°C)

Maintenance

Before performing any work on the Mag Drive, make sure the work area is clean and free of any metallic items.

Cleaning
Clean the Mag Drive once a week.

  1. Remove the cover and gland from the bottom of the Mag Drive.
  2. Pull the slurry cup table and rotor assembly up through the opening.
  3. Clean all abrasive particles from the rotor assembly. Lay the assembly on a clean, flat, nonmagnetic surface.
  4. Flush the cell and the Mag Drive housing with mineral oil. Use a soft brush to clean the inner portion of the Mag Drive.
  5. Thread the slurry cup table back onto the rotor shaft assembly.
  6. Pour a small amount of mineral oil into the cell. This will cushion the rotor assembly during insertion.
  7. Insert the rotor assembly into the Mag Drive housing. Press down on the slurry cup table until it touches the top bearing.

Outer Drive Assembly

  • If it is necessary to disassemble the outer drive assembly, you can remove the top and bottom retainers only for flushing and cleaning. This will allow the magnets to stay in place in the outer holder.
  • Do not attempt to install new magnets. If new magnets are required, we recommend you send the drive magnet assembly back to OFITE for service.

Rotor Repair

  • The rotor can become bent if not handled carefully when it is out of the housing or during transport. If it is bad enough, it can cause the rotor to hit the housing during rotation.
  • If you suspect the rotor is bent, use this procedure to verify and correct it:
    1. Carefully mount the rotor in a lathe.
    2. Turn the lathe slowly use an indicator to determine if the rotor is bent and find and mark the high spot.
    3. With the rotor still in the lathe, straighten it out by tapping the high spot using a mallet and wood block.
    4. Repeat steps 2 and 3 until the high spot is less than .005″.

Bearing Maintenance
We recommend inspecting the bearings for damage and wear every 750 hours of operation. Replace as necessary.

Parts Diagrams

OFITE-120-147-Mag-Drive-fig- \(1\)

ITEM

| QTY| PART NUMBER|

DESCRIPTION

---|---|---|---
1| 1| 120-147-000| MAG DRIVE HOUSING
2| 1| 120-147-004| LOCKING RING, MAG DRIVE
3| 1| 120-147-011| OUTER MAGNET RETAINER
4| 1| 120-147-007| OUTER MAGNET ASSY, MAG DRIVE
5| 1| 120-147-005| GLAND, MAG DRIVE
6| 1| 120-147-006| COVER, MAG DRIVE
7| 1| 120-147-012| O-RING, -016, VITON 90D
8| 1| 142-59-002| RETAINING RINGS
9| 1| 120-147-024| RETAINING RING, SS
10| 1| 120-147-008-1| INNER SHAFT ASSY, MAG DRIVE
11| 1| 120-147-013| BACKUP RING, GLAND
12| 1| 120-147-014| METAL O-RING, MAG DRIVE,
 |  |  | GARLOCK PN-U6410-02408-SOA

OFITE-120-147-Mag-Drive-fig- \(2\)

OFITE-120-147-Mag-Drive-fig- \(4\)OFITE-120-147-Mag-
Drive-fig- \(3\)

Parts List


ITEM| QTY| PART NUMBER|

DESCRIPTION

1| 1| 120-147-003| RING, STAINLESS STEEL
2| 1| 120-147-008| INNER MAGNETIC ENCAPSULATION ASSY
3| 1| 120-147-010| PIN, 1/8 DIA X 7/8 LG SLOTTED SPRING, SS
4| 2| 120-147-019| RETAINING RING, EXTERNAL, .50″ SHAFT
5| 2| 120-683| BEARING, BRONZE, SMALL
6| 1| 120-684| BEARING, BRONZE, LARGE

Warranty and Return Policy

Warranty:
OFI Testing Equipment, Inc. (OFITE) warrants that the products shall be free from liens and defects in title, and shall conform in all respects to the terms of the sales order and the specifications applicable to the products. All products shall be furnished subject to OFITE’s standard manufacturing variations and practices. Unless the warranty period is otherwise extended in writing, the following warranty shall apply: if, at any time before twelve (12) months from the date of invoice, the products, or any part thereof, do not conform to these warranties or the specifications applicable thereto, and OFITE is so notified in writing upon discovery, OFITE shall promptly repair or replace the defective products. Notwithstanding the foregoing, OFITE’s warranty obligations shall not extend to any use by the buyer of the products in conditions more severe than OFITE’s recommendations, nor to any defects which were visually observable by the buyer but which are not promptly brought to OFITE’s attention.

  • If the buyer has purchased installation and commissioning services on applicable products, the above warranty shall extend for an additional period of twelve (12) months from the date of the original warranty expiration for such products.
  • If OFITE is requested to provide customized research and development for the buyer, OFITE shall use its best efforts but make no guarantees to the buyer that any products will be provided.
  • OFITE makes no other warranties or guarantees to the buyer, either express or implied, and the warranties provided in this clause shall be exclusive of any other warranties including ANY IMPLIED OR STATUTORY WARRANTIES OF FITNESS FOR PURPOSE, MERCHANTABILITY, AND OTHER STATUTORY REM-EDIES WHICH ARE WAIVED.

This limited warranty does not cover any losses or damages that occur as a result of:

  • Improper installation or maintenance of the products
  • Misuse
  • Neglect
  • Adjustment by non-authorized sources
  • Improper environment
  • Excessive or inadequate heating or air conditioning or electrical power failures, surges, or other irregularities
  • Equipment, products, or material not manufactured by OFITE
  • Firmware or hardware that has been modified or altered by a third-party
  • Consumable parts (bearings, accessories, etc.)

Returns and Repairs:
Items being returned must be carefully packaged to prevent damage in shipment and insured against pos-sible damage or loss. OFITE will not be responsible for equipment damaged due to insufficient packaging.

Any non-defective items returned to OFITE within ninety (90) days of the invoice are subject to a 15% restocking fee. Items returned must be received by OFITE in their original condition for them to be accepted. Reagents and special order items will not be accepted for return or refund.

OFITE employs experienced personnel to service and repair equipment manufactured by us, as well as other companies. To help expedite the repair process, please include a repair form with all equipment sent to OFITE for repair. Be sure to include your name, company name, phone number, email address, detailed description of work to be done, purchase order number, and shipping address for returning the equipment. All repairs performed as “repair as needed” are subject to the ninety (90) day limited warranty. All “Certified Repairs” are subject to the twelve (12) month limited warranty.

Returns and potential warranty repairs require a Return Material Authorization (RMA) number. An RMA form is available from your sales or service representative.

Please ship all equipment (with the RMA number for returns or warranty repairs) to the following address:

OFI Testing Equipment, Inc.
Attn: Repair Department
11302 Steeplecrest Dr.
Houston, TX 77065
USA

OFITE also offers competitive service contracts for repairing and/or maintaining your lab equipment, including equipment from other manufacturers. For more information about our technical support and repair services, please contact techservice@ofite.com.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA/Tel: 832-320-7300/Fax: 713-880-9886/www.ofite.com.

References

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