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Free standard shipping on orders over $99
Estimated to be delivered on 12/01/2022 - 15/10/2022.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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SJ-2B4501TK is a Mitsubishi Electric SJ-B series built-in AC spindle motor, used in medium-power CNC machining centers for general milling and turning applications.
It belongs to the SJ-2B450x family, which is one of the most commonly used “industrial built-in spindle motor” lines in older Mitsubishi CNC machines.
From Mitsubishi SJ-B series technical documentation:
| Parameter | Value |
|---|---|
| Continuous rated output | 7.5 kW |
| Short-time rated output | 11 kW (30 min rating) |
| Acceleration/deceleration output | 15 kW |
| Actual accel/decel output | 18 kW |
| Base rotation speed | 700 rpm (low-speed coil) / 1320 rpm (high-speed coil) |
| Maximum speed | 10,000 rpm |
| Continuous torque | 102 N·m / 54.3 N·m (coil dependent) |
| Short-time torque | 150 N·m / 79.6 N·m |
| Rotor inertia | 0.08 kg·m² |
| Mass | ~47 kg (stator + rotor) |
| Cooling | Liquid/oil jacket cooling |
| Drive unit | MDS-D2-SP-200 |
| Code part | Meaning |
|---|---|
| SJ | Mitsubishi spindle motor family |
| 2B | SJ-B compact built-in spindle series |
| 4501 | 7.5 kW class motor variant (standard configuration) |
| T | terminal / connector type |
So:
SJ-2B4501TK = 7.5 kW built-in spindle motor for medium-duty CNC machining
This model is part of Mitsubishi’s workhorse spindle motor range, meaning it is designed for:
SJ-2B4501TK is used in:
It is preferred when machines need:
| Series | Role |
|---|---|
| SJ-2B | compact built-in spindles (low–mid power) |
| SJ-BG | modern high-speed built-in spindles |
| SJ-DG | high-torque cutting spindles |
| SJ-DL | external high-speed spindle motors |
SJ-2B4501TK is a 7.5 kW built-in CNC spindle motor designed for medium-duty machining, offering strong torque, reliable continuous cutting, and up to 10,000 rpm operation.
Nam tempus turpis at metus scelerisque placerat nulla deumantos solicitud felis. Pellentesque diam dolor, elementum etos lobortis des mollis ut risus. Sedcus faucibus an sullamcorper mattis drostique des commodo pharetras loremos.Donec pretium egestas sapien et mollis. Pellentesque diam dolor cosmopolis etos lobortis.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
| Drostique | Nam tempus turpis at metus scelerisque placerat nulla deumantos |
| Pharetro Lorem | Pellentesque diam dolor elementum etos lobortis des mollis |
| Milancelos | Donec pretium egestas sapien et mollis |
| Pellentesque | Sedcus faucibus an sullamcorper mattis drostique des commodo pharetras |
| Proin Molestie | Pellentesque diam dolor elementum etos lobortis des mollis |
| Cosmopolis | Donec pretium egestas sapien et mollis |
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