Robot with Motor problems

Hey, the firm/corp I work for is fixing some robots that are going to lift and place packages in a storage facility.But we got met some problems with our BLDC Nanotec Motors. Is there any other firms/corps that make motors which have the same specs as the Nanotec motors or very similar to them.

Specs: 2stk BLDC Motor without Encoder

Nema (newton) : 34

Rated Power : 660W

Rated Current : 17.95 A

Rated Speed : 3000 RPM

Rated Voltage : 48V (Rated voltage must be 48V)

3stk BLDC Motor with Encoder

Nema (newton) : 32

Encoder : yes

Encoder type : Incremental

Rated Power : 942 W

Rated Torque : 300 ncm

Rated Current : 25 A

Rated Voltage : 48 V

5stk Motor Controller for Ethercat

Interface : Ethercat

Rated Current : 18 A

Corresponding Motors : Brushless DC

Motors, Stepper Motor.

Type of Digital Input : 5/24 V switchable / 5 - 24 V

Type of Analog Input : -10 - +10 / 0-20 mA switchable

Type of Digital Output : Open-drain (max 24V / 500mA)

Encoder Signal Type : Incremental

Operating Voltage : 12 VDC - 48 VDC

Peak Current : 40 A