Width 300 Series | IDAM L7 Series High-Efficiency Water-Cooled Iron-Core Linear Motors

Series Overview

The L7 Width 300 sub-series consists of three primary part lengths — 350-300, 500-300, and 650-300 — with a 300 mm secondary part width. Peak force range 12,157 ~ 24,313 N, water-cooled continuous force 5,667 ~ 11,229 N. 650-300 is the largest model in the L7 series, providing the series peak-force ceiling of 24,313 N, suitable for the most demanding machine tool spindles and heavy-duty machining.

Dimensions

Side / end view dimensions (shared across the entire series)

Top view dimensions (shared across the entire series)

Performance Data — Width 300

Category / Parameter	Symbol	Unit	350-300	500-300	650-300
Winding
Winding	—	—	Z2.8H	Z2.8H	Z3.8H
Forces
Ultimate force (1 s)	F_u	N	13,296	19,944	26,593
Peak force	F_p	N	12,157	18,235	24,313
Continuous force (cooled)	F_cw	N	5,667	8,415	11,229
Continuous force (not cooled)	F_c	N	1,838	2,629	3,437
Stall force (cooled)	F_sw	N	3,759	5,580	7,444
Cogging force at I = 0	F_cog	N	24.31	36.47	48.63
Velocities
Limiting velocity at I_p, U_DCL = 600 V	v_lp600	m/s	0.88	0.56	0.76
Limiting velocity at I_cw, U_DCL = 600 V	v_lw600	m/s	2.04	1.42	1.82
Limiting velocity at I_p, U_DCL = 300 V	v_lp300	m/s	0.27	0.03	0.20
Limiting velocity at I_cw, U_DCL = 300 V	v_lw300	m/s	0.88	0.58	0.78
Currents
Effective ultimate current (1 s)	I_u eff	A	90.8	98.4	163.2
Effective peak current	I_p eff	A	72.7	78.7	130.5
Effective continuous current (cooled)	I_cw eff	A	24.9	26.7	44.3
Effective continuous current (not cooled)	I_c eff	A	7.91	8.17	13.29
Effective stall current (cooled)	I_sw eff	A	16.4	17.6	29.2
Power losses
Power loss at F_p	P_lp	W	17,414	26,275	34,725
Power loss at F_cw	P_lw	W	2,738	4,047	5,357
Power loss at F_c	P_lc	W	277	379	482
Electrical characteristic values
DC link voltage	U_DCL	V	800	800	800
Electrical resistance, phase to phase	R₂₀	Ω	2.20	2.82	1.36
Inductance, phase to phase	L	mH	42.88	54.78	26.57
Back EMF constant	k_û	V/(m/s)	190.0	263.1	211.6
General characteristic values
Pole pair width	2τ_p	mm	46	46	46
Motor constant (20 °C)	k_m	N/√W	128.2	156.5	181.5
Force constant	k_f	N/A	232.3	321.6	258.7
Motor temperature switch-off	JPTC	°C	110.0	110.0	110.0
Attraction force	F_a	N	18,615	27,922	37,230
Cooling conditions (medium: water, supply temperature 20 °C)
Recommended volume flow rate	dV/dt	l/min	11.0	12.0	13.0
Cooling water temperature difference	ΔJ	K	3.6	4.8	5.9
Pressure drop	Δp	bar	0.8	1.3	1.9

Geometric Data — Width 300

Category / Dimension	Symbol	Unit	350-300	500-300	650-300
Primary part
Length	L_P	mm	384	545	706
Width	B_P	mm	340	340	340
Height	H_P	mm	58.5	58.5	58.5
Maximum width	B_PMAX	mm	344.4	344.4	344.4
Cooling water connection	TS_PC	—	4 × G1/8″	4 × G1/8″	4 × G1/8″
Mass	m_P	kg	ca. 39	ca. 55	ca. 72
Secondary part
Length	L_S	mm	184
Width	B_S	mm	334
Height (without encapsulation)	H_S	mm	18
Height (encapsulated)	H_SP	mm	18.3
Motor installation dimensions
Width with secondary part cooling system	B	mm	345
Height without secondary part cooling system	H	mm	78
Height with secondary part cooling system	H_SC	mm	88

Specifications subject to change without notice.

Source: Schaeffler Industrial Drives — L7 Series High Efficiency Linear Motors (PHL en-GB / DE / 2025-01).

For parameter definitions see the Type Designation & Glossary page.

Series Overview

Dimensions

Performance Data — Width 300

Geometric Data — Width 300

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