1635758012 (=1623811821): MOTOR

The genuine Atlas Copco Air Compressor 1635758012 (=1623811821) Motor represents the pinnacle of industrial electric powertrain engineering. Manufactured by industry pioneer ABB in Finland, this massive 450 kW high-performance motor is designed to maintain continuous operation under extreme load conditions. In heavy-duty industrial environments, the primary electric motor serves as the heart of the entire compressed air system. For large-scale industrial operations utilizing high-capacity screw compressors, maximizing runtime and energy efficiency relies entirely on the quality of this motor.

Firsthand Sales & Inspection Experience

Our technical teams physically handle, inspect, and supply these heavy-duty power units directly to global enterprise clients. Based on our extensive hands-on experience, the premium nature of this product is evident immediately upon arrival. Each motor is shipped in robust, heavy-duty industrial factory crates featuring clear, high-contrast Atlas Copco brand and official sequencing labels.

The packaging prominently features verified documentation identifying the unit as an ORIGINAL PART, complete with the unique factory part number 1635758012. Our close technical evaluations, physical measurements, and electrical insulation tests confirm that these units are brand-new, authentic original components sourced straight from the factory floor. They provide a precise mechanical fit and deliver the exact nominal torque parameters required by your air end.

2. Technical Parameters

To ensure proper electrical integration, facility space allocation, and logistical planning, the certified technical specifications for this motor are outlined in the table below:

3. Technical Expertise & GA450 Retrofit Requirements

When upgrading an existing Atlas Copco GA450 air compressor from the legacy motor (1623811821) to the new high-efficiency motor model (1635758012), precise physical and mechanical adjustments must be made. Frame geometries and mechanical connection standards evolve to meet modern efficiency mandates. As a result, this update requires specific structural modifications on-site to ensure optimal alignment and prevent coupling failure.

Critical Engineering Conversion Notes for GA450 Installations:

• Coupling Adjustments: You must replace the existing coupling half with part number 1621144600.
• Hardware Additions: Add Spacer part numbers 1621169109, 1621169121, and two pieces of 0301244500 (2x).
• Stud & Nut Replacement: Replace the legacy anchoring stud and nut with part numbers 1830002313 and 0261109163 respectively.
• Hardware Removal: Completely remove two legacy washers, part number 0300012948 (2x).
• Support Base Modification: Enlarge the existing 26 mm hole on the current motor support structure (1621144800) to a clean 32 mm diameter. This modification is required to accommodate the heavy-duty M30 threads of the new anchoring stud.
• Motor Support Relocation: Shift the entire motor support assembly exactly 101 mm away from the main coupling housing.
• Dimensional Changes: The new motor’s overall length is increased by 63 mm, and its total physical height is increased by 49 mm. Conversely, the outer baffle diameter of the new motor has decreased by 20 mm.
• Terminal Box Orientation: The main electrical terminal box on the new motor shifts 90 degrees counter-clockwise (CCW) compared to the legacy layout. Engineers must verify local cable slack and site layouts before final placement.

4. Brand Authority & Supply Chain Trustworthiness

Global Brand Authority

Atlas Copco is a world leader in compressed air technology, recognized for engineering high-end systems that handle demanding industrial manufacturing tasks. Choosing genuine components preserves the factory-designed flow dynamics, thermal balance, and mechanical tolerances of your compressor setup. This protects your capital investment and prevents costly production delays.

Your Trusted Supply Chain Partner

Our company, has focused on Atlas Copco air compressors and original parts for 26 years, maintaining a regular inventory of over 23,000 pieces. We source directly from Atlas Copco (Shanghai) Trading Co., Ltd. to guarantee that each product delivered to your facility is a 100% genuine, original Atlas Copco component. Over more than two decades, we have established long-term relationships with engineering teams and procurement managers worldwide through professionalism, reliability, and mutual respect.

6. Replacement Guidelines & Safety Steps

Pre-Installation Safety Actions

Because this motor weighs 2500.00 kg, you must use heavy-duty overhead gantry cranes, hoists, and certified lifting shackles rated for at least 3 metric tons. Implement a strict Lockout/Tagout (LOTO) process to fully isolate the air compressor from the 400 V / 50 Hz electrical grid. Vent all compressed air lines to 0 BAR and allow the machine to cool down completely before starting work.

Step-by-Step Installation Flow

1. Disconnect Electrical Leads: Label and remove the high-voltage power cables from the old terminal box.
2. Uncouple and Unbolt: Remove the legacy coupling bolts and unscrew the foundation nuts from the support base.
3. Extract Legacy Motor: Securely attach lifting straps to the designated hoist rings, lift the old motor smoothly, and clear the work area.
4. Modify Support Base: Use a precision magnetic base drill to enlarge the holes on support 1621144800 from 26 mm to 32 mm. Move the support beam exactly 101 mm away from the coupling housing.
5. Install New Hardware: Mount the new M30 studs (1830002313) and position the new spacers (1621169109, 1621169121).
6. Position New Motor: Lift and lower the new 1635758012 motor onto the repositioned base, accounting for the 63 mm length increase and 49 mm height increase.
7. Align and Secure: Use laser alignment tools to check the shaft positioning against the new coupling half (1621144600). Torque the foundation nuts (0261109163) to original factory specifications.
8. Electrical Connection: Connect the high-voltage supply lines to the reoriented terminal box (shifted 90° CCW), verify phase rotation, restore power, and conduct a test run to check vibration levels.

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