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TIH L77

Model TIH L77 / TIH L シリーズ / SKF (Official website) / Listed on page 46 of the document

Induction heater with expanded heating area for extra-large bearings. Can heat bearings up to 1200 kg with 20 kVA.

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TIH L77 on page 46 of SKF "SKFメンテナンス製品と潤滑製品"
Source: SKF「SKFメンテナンス製品と潤滑製品」page 46
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Specifications

Maximum Workpiece Mass 1200 kg
Applicable bearing bore diameter range 150–800 mm
Heating area (width × height) 725 × 792 mm
Maximum Power Consumption 20–24 kVA
Temperature Control Range 20 – 250 °C
Body Mass 415 kg
External dimensions (width × depth × height) 1 320 × 600 × 1 150 mm

TIH L シリーズ model comparison

Compare 3 models in the same series by specification.

Model Applicable bearing bore diameter range Maximum Workpiece Mass Heating area (width × height) Maximum Power Consumption Temperature Control Range External dimensions (width × depth × height) Body Mass
TIH L33 115–700 mm 700 kg 300 × 320 mm 15 kVA 0 – 250 °C 400 × 743 × 550 mm 140 kg
TIH L44 150–800 mm 1200 kg 425 × 492 mm 20 kVA 20 – 250 °C 1 200 × 600 × 850 mm 324 kg
TIH L77 This product 150–800 mm 1200 kg 725 × 792 mm 20–24 kVA 20 – 250 °C 1 320 × 600 × 1 150 mm 415 kg

How to choose Induction heaters

Points to check when selecting, with the values for this product (TIH L77).

  1. 1. Select capacity suited to workpiece mass

    This product: Maximum Workpiece Mass 1200 kg

    The maximum heatable mass varies widely among models, from 40 kg to 1200 kg. Insufficient capacity prolongs heating time and can cause uneven temperature. Select a model with adequate margin over the heaviest bearing or part to be handled, and check the heating performance data in the catalog, such as the mass that can be heated to 110°C within the specified time.

  2. 2. Confirm bore and yoke combination

    This product: Applicable bearing bore diameter range 150–800 mm

    Because the workpiece is heated while threaded over the yoke, the minimum bore that can be handled is determined by the yoke cross-section. Bearings with small bores require thin yokes, so check the number of supplied yokes and the bore range each yoke corresponds to. Dedicated inner ring removal units have a narrow fixed bore range, such as 65 to 130 mm, so match them to the dimensions of the target bearing.

  3. 3. Check that outer diameter and width fit the heating area

    This product: Heating area (width × height) 725 × 792 mm

    If the distance between the support columns or the height is smaller than the workpiece's outer diameter or width, the part cannot be placed. When heating large-diameter or wide bearings, gears or pulleys, also check whether the model has an expanded heating area, or slide-type or swivel-type yokes that make loading and unloading easier.

  4. 4. Verify power capacity and voltage against facility

    This product: Maximum Power Consumption 20–24 kVA

    Maximum power consumption reaches about 20 kVA on large models, and the unit cannot be used if the facility's incoming power capacity or breaker capacity is insufficient. Supported voltages such as 230 V/400 V also differ by model. Confirm the power specification of the installation site in advance and whether the connection cable length reaches.

  5. 5. Check temperature settings and protection functions

    The maximum heating temperature of the listed products is 250°C. Bearings generally lose hardness and precision when overheated, so check for temperature control using a temperature probe, time setting, and overheat protection. When shrink-fitting parts other than bearings, confirm that the temperature can be set to match the required expansion amount.

  6. 6. Body mass and installation and transport methods

    This product: Body Mass 415 kg

    Body mass ranges from 20 kg to over 400 kg. Small models can be carried and used on site, while large models assume floor mounting or movement by forklift or trolley. Also consider workability, including how the workpiece is lifted, the working space, and whether demagnetization and remote control operation are available.

This guide was written by AI based on the listed products' documents and specification items.

About Induction heaters and all products

Description

Model with a greatly expanded heating area, suitable for special bearings and large components. Bore diameter 150 to 800 mm.

Features

  • Expanded heating area
  • Dual coil design
  • Slide-type yoke

Applications

  • Special bearing heating
  • Heating of large components

FAQ

Q. What bearing bore diameter range and maximum workpiece mass does the TIH L77 accommodate?
A. The applicable bearing bore diameter range is 150–800 mm, and the maximum workpiece mass is 1200 kg.
Q. What are the heating area dimensions and maximum power consumption of the TIH L77?
A. The heating area (width × height) is 725 × 792 mm, and the maximum power consumption is 20–24 kVA.
Q. What applications is the TIH L77 suited for?
A. It is suited for special bearing heating and heating of large components. It is an induction heater for extra-large bearings with an expanded heating area.
Q. What is the temperature control range and the external dimensions and mass of the main unit of the TIH L77?
A. The temperature control range is 20–250 °C. External dimensions (width × depth × height) are 1 320 × 600 × 1 150 mm, and the main unit mass is 415 kg.
Q. What mechanisms are featured in the TIH L77?
A. Key features are the expanded heating area, dual coil design, and slide-type yoke.

Written by AI based on the content of the source documents.

Source documents

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