Product Features

Torque range: 260N.m to 150000Nm

Capable of guaranteeing a gear contact ratio that is greater than that of a 0.1mm disparity in the process.

Use a ASTM5140 material for the shaft, which has a significantly higher strength.

The surface has been subjected to carbonization treatment.

Unit featuring high efficiency reduction

90° rotation (±5°)

Self-locking device that is stable

Temp range: -45℃ to 180℃, providing a broader temperature range for use

Weatherproof level: IP67 (optional: IP68)

Product Technology

Parameters

Electric actuator plate JB2920 connection dimension

JB2920Connectiondimension
Electric model	Frame size	D	D1	D2	b	f	h	d1	d2	d	n
Z5/Z10/Z15	2	145	120	90	12	4	8	30	45	12	4
Z20/Z30	3	185	160	125	15	4	10	42	58	14	4
Z45/Z60	4	225	195	150	20	5	12	50	72	18	4
Z90/Z120	5	275	235	180	25	5	14	62	82	22	4
Z180/Z250	7	330	285	220	30	6	16	72	98	26	4
Z350/Z500	8	380	340	280	35	6	20	80	118	22	8
Z650/Z800	9	430	380	300	40	8	25	85	128	26	8
Z1000/Z1200	10	510	450	360	45	8	30	105	158	33	8

Product Parameter

Model	Speed ratio	Input torque N•m	Output torque N•m	Flange Size	Maximum stem diameter	Maximum install height	Handwheel diameter
JMG15	27	32	260	F05/F07/F10	20	55	200
JMG20	37	47	520	F07/F10/F12	28	58	250
JMG21	38	75	850	F10/F12/F14	36	63	300
JMG30	40	113	1350	F12/F14/F16	48	85	350
JMG55	47	142	2000	(F12)/F14/F16	53	90	400
JMG58	55	152	2500	F14/F16/F20	62	95	500
JMG88	61	164	3000	F16/F20/F25	65	105	500
JMG88-S32	167	90	4200	F16/F20/F25	65	105	500
JMG100-S32	177	111	5500	F16/F20/F25	72	110	500
JMG195-S32	167	139	6500	F16/F20/F25	80	115	600
JMG195-S40	208	129	7500	F16/F20/F25	80	115	600
JMG280-S50	280	108	8500	F25/F30	90	136	600
JMG300-S50	290	117	9500	F25/F30	95	145	600
JMG300-DS60	348	117	11000	F25/F30	95	145	600
JMG680-DS60	372	139	14000	F25/F30/F35	115	148	600
JMG680-DS80	519	121	17000	F25/F30/F35	115	148	600
JMG780-DS100	587	145	23000	F30/F35	125	157	600
JMG980-DS120	731	152	30000	F30/F35	140	180	700
JMG1080-DS150	1110	116	36000	F30/F35/F40	145	190	700
JMG1090-DS150	1453	111	45000	F35/F40	160	190	700
JMG1180-PG290	1658	123	55000	F35/F40/F48	180	205	700
JMG1190-PG350	2228	116	70000	F40/F48	200	210	700
JMG1280-PG530	2769	120	90000	F40/F48	210	225	700
JMG1380-PG530	3621	127	120000	F48/F60	260	257	700
JMG1380-PG540	3655	152	150000	F48/F60	260	257	700

Advantage

Explored View and Material

Nos	Part name	Standard
Nos	Part name	Material	GB	JIS	ASTM
1	Worm Box	Ductile iron	QT450-10	FCD-450	65-45-12
2	Worm gear	Ductile iron	QT500-7	FCD-500	80-55-06
3	Box cover	Ductile iron	QT450-10	FCD-450	65-45-12
4	Worm	Alloy steel	40Cr	Scr440	ASTM5140
5	Shaft	Alloy steel	40Cr	SCr440	ASTM5140
6	Indicator	Aluminum alloy	YL112	ADC12	SG100B
7	Sealing plate	BUNA-N	NBR	NBR	NBR
8	Thrust bearing	Bearing steel	GCr15	SUJ2	A295-52100
9	Bearing	Carbon steel	20+PTFE	S20C+PTFE	A576-1020+PTFE
10	Oil seal	BUNA-N	NBR	NBR	NBR
11	Cover oil seal	BUNA-N	NBR	NBR	NBR
12	O－ring	BUNA-N	NBR	NBR	NBR
13	Hexagon bolt	Alloy steel	45	SCM435	A322-4135
14	Screw	Alloy steel	45	SCM435	A322-4135
15	Hexagon nut	Alloy steel	45	SCM435	A322-4135
16	Hexagon nut	Carbon steel	45	S45C	A576-1045
17	Nut cover	BUNA-N	NBR	NBR	NBR
18	Set screw	Alloy steel	45	SCM435	A322－4135
19	Flat key	Carbon steel	45	S45C	A576-1045

Product Highlights

Valve gearbox body process：

Through our comprehensive in-house machining capabilities, JIMAI independently processes all valve gearbox body components from raw material to finished product. This complete manufacturing control allows us to maintain exacting quality standards while offering extensive customization options, including alternative material selections for extreme pressure or temperature conditions, modified flow path geometries, and application-specific mounting interfaces to ensure perfect system integration.

Carburization treatment worm：

Through our proprietary carburization process, JIMAI produces high-performance worms with engineered surface characteristics. The treatment creates a precisely controlled hardened zone (typically 0.5-1.5mm depth) while preserving the core's mechanical properties, resulting in components that resist abrasive wear, surface fatigue, and scoring while maintaining dimensional stability across millions of operating cycles, significantly reducing unplanned downtime and replacement costs.

Low temp lubricant：

The advanced lubricant technology employed by JIMAI combines polyalphaolefin synthetic base stocks with boundary lubrication additives to deliver reliable performance across our specified temperature range. This formulation maintains proper flow characteristics in extreme cold to ensure immediate protection at startup while providing adequate thermal stability to prevent oil degradation in high-heat conditions, resulting in consistent friction reduction and wear protection throughout the gear system's operating envelope.

Torque testing machines：

JIMAI's torque testing infrastructure features multiple test stations equipped with strain-gauge based measurement systems capable of 0.5% full-scale accuracy. Our engineers perform complete torque characterization including breakaway torque measurement, running torque analysis at various speeds, and hysteresis evaluation during direction reversal. This data-rich testing approach not only confirms specification compliance but also generates detailed performance profiles that help customers optimize their system designs for energy efficiency and operational reliability.

Temperature testing：

JIMAI's temperature validation laboratory features walk-in chambers equipped with precision temperature control (±1°C) and real-time performance monitoring systems. Our testing methodology evaluates cold temperature startability, thermal expansion effects on gear meshing, and lubricant performance at temperature extremes. For special applications, we can create custom thermal profiles matching specific duty cycles, providing empirical data to validate design margins and ensure fail-safe operation in critical temperature-variable processes.

Worm process：

Our vertically integrated worm production begins with premium alloy steel billets that are precision machined using CNC turning centers followed by finish grinding on dedicated thread grinders. The process achieves lead accuracy within 5 microns per 100mm length and tooth profile deviations of less than 0.01mm, ensuring optimal load distribution and smooth rotational characteristics. Post-machining surface enhancement processes further improve wear resistance and running-in performance, contributing to the silent operation and maintenance-free longevity of our gearbox systems.

JMG Series Rotary Valve Gearbox With Electric Actuator

Electric actuator plate JB2920 connection dimension

Product Parameter

Advantage

Explored View and Material