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nema 23 stepper motor, 1. Current and torque are adjustable, 2. Can be customized, 3. Widely used, 4. Driver is available - details see: https://www.machineto.com/57-hja-series-high-torque-hybrid-stepper-motor-10239213

Step angle tolerance	± 5%
Maximum temperature	80ºC
Ambient temperature	– 20ºC ~ +50ºC
Insulation resistance	100MΩmin 500VDC
Di - electric strength	500AC 1 minute
Radial play	0.02Max (450g -load)
End play	0.08Max(450g -load)
Resistance tolerance	± 10%
Inductance tolerance	± 20%

57HJA for lead wire:

Model	Step angle	Number of phase	Current /phase	Resistance /phase	Inductance /phase	Holding torque	Rotor inertia	Wiring diagram	Motor mass	Motor length
			A	Ω	mH	mN.m	g.cm2		kg	mm
57HJA441-21	1.8°	2	1.0	10.5	16	500	120	a	0.46	41
57HJA446-25	1.8°	2	0.9	12.5	20	750	185	a	0.52	46
57HJA451-28	1.8°	2	0.9	12.5	25	900	275	a	0.65	51
57HJA455-28	1.8°	2	1.1	10	33	1100	310	a	0.71	55
57HJA641-25	1.8°	4	2.0	1.5	1.6	390	120	b	0.46	41
57HJA651-21	1.8°	4	1.1	6.8	8.5	720	275	b	0.65	51
57HJA655-25	1.8°	4	1.0	8.0	11	1010	310	b	0.71	55