Combined Modular Reducer - Custom Gearbox and Transmission

Description

Standardized components and parts that were modular manufactured comprise the special modular composition system of Shuanglian Company. Theoretically, these components and parts can be combined in tens of thousands of ways, and the customer must be able to find an ideal solution among these combinations that meets their gearing demands. The modular composition system of Shuanglian Company requires that all components and parts shall be manufactured in the most modernized technology, and massively produced among automatic processing production lines. Such a modular composition system can endure massive production. Each structural component can be optimized through composition, and meet customers’ demands for all kinds of combinations and services while ensuring high product quality.

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●RC+RC combined Gearmotor
The range of the final ratio

Input-stage RC series models	Output-stage RC series models
	RC37	RC47	RC67	RC77	RC87	RC97	RC107	RC137	RC147	RC167	RC187
	RC/RC Ratio range
RC37	168- 20299	190- 24657	187- 24337	209- 27442
RC47					249- 40894
RC67						262- 45167
RC77							285- 50929	279- 50954
RC87									285- 61809
RC97										302- 69535
RC107											255- 65271

●RC+FC combined Gearmotor
The range of the final ratio

Input-stage RC series models	Output-stage FC series models
	FC37	FC47	FC67	FC77	FC87	FC97	FC107	FC127	FC157
	Ratio range
RC37	168- 20036	192- 25042	214- 28066	270- 34687
RC47					305- 47187
RC67						311- 46576
RC77							305- 66816
RC87								295- 64123
RC97									274- 71014

●RC+KC combined Gearmotor
The range of the final ratio

Input-stage RC series models	Output-stage KC series models
	KC37	KC47	KC67	KC77	KC87	KC97	KC107	KC127	KC157	KC167	KC187
	Ratio range
RC37	110- 14654	133- 18011	154- 20472	182- 24997
RC47					213- 34157
RC67						255- 33714
RC77							211- 37786
RC87								213- 46357
RC97									211- 52151	214- 48953
RC107											215- 48953

●RC+SC combined Gearmotor
The range of the final ratio

Input-stage RC series models	Output-stage SC series models
	SC37	SC47	SC57	SC67	SC77	SC87	SC97
	Ratio range
RC37	227- 29065	277- 29065	277- 29065	319- 40606	362- 49582
RC47						420- 67341
RC67							412- 66468

●WB+WJ combined reducer
The range of the final ratio

Input-stage WB series models	Output-stage Wj series models
	Wj40	Wj50	Wj63	Wj75	Wj90	Wj110	Wj130
	Ratio range
WB65	107- 5900	107- 6018
WB85			107- 7242	107- 6958
WB100					107- 8700	107- 8700
WB120							107- 10100

●WB+Wd combined reducer
The range of the final ratio

Input-stage WB series models	Output-stage Wd series models
	Wd40	Wd50	Wd63	Wd75	Wd90
	Ratio range
WB65	107- 5900	107- 6018
WB85			107- 7242	107- 6958
WB100					107- 8700

●MB+RC combined Gearmotor
The range of the final ratio

Stepless model	P1(kW)	RC series speed reducer models
		RC47	RC67	RC77	RC87	RC97	RC107	RC137	RC147
		RC series speed reducer drive ratio
MB02	0.12	5.02- 173.1
	0.18
MB04	0.25	5.02- 173.1	5.11- 170.8	4.99- 192.6
	0.37
MB07	0.55		5.11- 170.8	4.99- 192.6	4.9- 236.3
	0.75
MB15	1.1			4.99- 192.6	4.9- 236.3	5.08- 264.4
	1.5
MB22	2.2				4.9- 236.3	5.08- 264.4	4.86- 264.4
MB40	3					5.08- 264.4	4.86- 264.4	5.04- 264.4
	4
MB55	5.5						4.86- 264.4	5.04- 264.4	4.99- 261.6
MB75	7.5							5.04- 264.4	4.99- 261.6

●MB+FC combined Gearmotor
The range of the final ratio

Stepless model	P1(kW)	FC series speed reducer models
		FC47	FC67	FC77	FC87	FC97	FC107	FC127	FC157
		FC series speed reducer drive ratio
MB02	0.12	4.36- 175.8
	0.18
MB04	0.25	4.36- 175.8	4.37- 140	4.19- 141.6
	0.37
MB07	0.55		4.37- 140	4.19- 141.6	4.29- 141.9
	0.75
MB15	1.1			4.19- 141.6	4.29- 141.9	4.21- 141.9
	1.5
MB22	2.2				4.29- 141.9	4.21- 141.9	4.35- 142.8
MB40	3					4.21- 141.9	4.35- 142.8	4.29- 141.2
	4
MB55	5.5						4.35- 142.8	4.29- 141.2	9.1- 190.5
MB75	7.5							4.29- 141.2	9.1- 190.5

●MB+KC combined Gearmotor
The range of the final ratio

Stepless model	P1(kW)	KC series speed reducer models
		KC47	KC67	KC77	KC87	KC97	KC107	KC127	KC157
		KC series speed reducer drive ratio
MB02	0.12	8.24- 126.4
	0.18
MB04	0.25	8.24- 126.4	8.14- 143.7	8.22- 175.5
	0.37
MB07	0.55		8.14- 143.7	8.22- 175.5	8.01- 197.4
	0.75
MB15	1.1			8.22- 175.5	8.01- 197.4	8.2- 197.4
	1.5
MB22	2.2				8.01- 197.4	8.2- 197.4	8.0- 196.2
MB40	3					8.2- 197.4	8.0- 196.2	8.18- 196.2
	4
MB55	5.5						8.0- 196.2	8.18- 196.2	18.37- 197.2
MB75	7.5							8.18- 196.2	18.37- 197.2

●MB+SC combined Gearmotor

15	1.1	12.05- 285	12.05- 348
	1.5
MB22	2.2		12.05- 348	11.72- 389.1	11.12- 389.1
MB40	3			11.72- 389.1	11.12- 389.1
	4
MB55	5.5				11.12- 389.1

●MB+WJ combined reducer
The range of the final ratio

Stepless model	P1(kW)	Wj series speed reducer models
		Wj50	Wj63	Wj75	Wj90	Wj110	Wj130
		Wj series speed reducer drive ratio
MB02	0.12	7.5- 100	7.5- 100
	0.18
MB04	0.25	7.5- 100	7.5- 100	7.5- 100
	0.37
MB07	0.55		7.5- 100	7.5- 100	7.5- 100	7.5- 100
	0.75
MB15	1.1			7.5- 100	7.5- 100	7.5- 100	7.5- 100
	1.5
MB22	2.2				7.5- 100	7.5- 100	7.5- 100
MB40	3					7.5- 100	7.5- 100
	4
MB55	5.5						7.5- 100
MB75	7.5						7.5- 100

The range of the final ratio

Stepless model	P1(kW)	Wd series speed reducer models
		Wd50	Wd63	Wd75	Wd90	Wd110	Wd130
		Wd series speed reducer drive ratio
MB02	0.12	7.5- 100	7.5- 100
	0.18
MB04	0.25	7.5- 100	7.5- 100	7.5- 100
	0.37
MB07	0.55		7.5- 100	7.5- 100	7.5- 100	7.5- 100
	0.75
MB15	1.1			7.5- 100	7.5- 100	7.5- 100	7.5- 100
	1.5
MB22	2.2				7.5- 100	7.5- 100	7.5- 100
MB40	3					7.5- 100	7.5- 100
	4
MB55	5.5						7.5- 100
MB75	7.5						7.5- 100

●MB+X combined reducer
The range of the final ratio

Stepless model	P1(kW)	X series speed reducer models
		X2	X3	X4	X5	X6	X7	X8	X9	X10
		X series speed reducer drive ratio
MB02	0.12	9- 87
	0.18
MB04	0.25	9- 87	9- 87
	0.37
MB07	0.55		9- 87	9- 87	9- 87
	0.75
MB15	1.1			9- 87	9- 87	9- 87
	1.5
MB22	2.2				9- 87	9- 87	9- 87	9- 87
MB40	3					9- 87	9- 87	9- 87
	4
MB55	5.5						9- 87	9- 87	9- 87
MB75	7.5							9- 87	9- 87

●KC+HC combined gearbox

Product Description

Functional Positioning and Automation Integration
The Combined Modularity 26 series is engineered to bridge the gap between standard single-stage reduction and the need for ultra-high transmission ratios in compact spaces. Targeted at automation system integrators and OEM machinery designers, this product enables the coupling of different gear units, such as a pre-stage helical unit (PC) with a worm gear unit (NMRV), or the combination of two worm gearboxes. While many planetary gearbox manufacturers focus solely on high-precision servo applications, this combined modular system provides a cost-effective, high-torque solution for general automation logistics, packaging machinery, and material handling. It is designed to offer flexibility in speed reduction without requiring a complete redesign of the drivetrain, allowing users to achieve ratios that a single box cannot deliver, ensuring precise control for heavy-duty conveyor belts and assembly lines.

Technical Architecture and Core Specifications
The technical core of this series lies in its standardized flange interface and modular coupling system. The unit typically features a PC pre-stage helical gear module connected to a standard NMRV worm reducer, or a variator (UD) coupled with a reducer. This configuration allows for reduction ratios extending well beyond the standard 1:100 limit, reaching up to 1:300 or higher depending on the staging. The housing is constructed from high-quality die-cast aluminum alloy or cast iron, depending on the frame size, ensuring superior thermal conductivity. Unlike standard off-the-shelf units, our role as industrial gearbox manufacturers allows us to machine the input and output shafts to precise tolerances (g6/k6), ensuring compatibility with IEC standard motors. The internal gears utilize high-strength bronze alloys and hardened steel worms, ground to minimize friction and noise, maintaining efficiency even at high reduction steps.

Industrial Application and Efficiency Value
In the industrial landscape, the Combined Modularity 26 series is indispensable for sectors requiring slow output speeds with significant torque, such as ceramic processing, wastewater treatment agitators, and food processing conveyors. The value proposition lies in the elimination of bulky, oversized motors; by utilizing the mechanical advantage of the combined stages, operators can use smaller, energy-efficient motors to drive heavy loads. As specialized worm gear manufacturers, we optimize the contact pattern of the gear teeth to ensure that despite the high ratio, the thermal rating remains within safe operational limits. This setup provides a reliable alternative to frequency inverters for speed reduction, delivering constant torque at low speeds where electronic control might lose power, thereby reducing the total cost of ownership for facility managers and maintenance teams.

FAQ

What is the benefit of a combined modular gearbox over a single unit?
Combined modular gearboxes connect two reduction stages (like a helical pre-stage and a worm gear) to achieve much higher reduction ratios (up to 1:300+) and higher torque in a compact footprint, which is often impossible with a single standard unit.

Can I order a custom shaft dimension for the combined unit?
Yes, as a flexible provider of custom gearbox solutions, we can machine output shafts (solid or hollow) to your specific diameter and length requirements to match your existing equipment interfaces.

How do I determine the correct mounting position for the combined unit?
You must specify the mounting position (e.g., M1, M2, M3) during ordering because it affects the oil fill level and breather plug placement. Correct orientation is vital for lubrication, a standard practice among professional industrial gearbox manufacturers.

Are your combined units compatible with servo motors?
Yes, we provide specific input flanges designed to accept servo motors. While we are distinct from exclusive planetary gearbox manufacturers, our modular worm and helical combinations are frequently used with servos in applications requiring self-locking or high ratios.

What maintenance is required for the Combined Modularity 26 series?
Most smaller sizes are factory-filled with synthetic long-life lubricant and require no oil changes. Larger sizes may require periodic oil changes. As dedicated worm gear manufacturers, we provide detailed maintenance schedules in our user manual to ensure peak performance.

Combined Modularity

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