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Industrial Cable Manipulator with a Pneumatic Drive RMK CM-125-PP — Custom Configuration
The RMK CM-125-PP Cable Manipulator is a custom-built industrial manipulator with a pneumatic drive, designed for the mechanized handling of loads weighing up to 125 kg. The equipment is mounted on a stationary column and features a two-section articulated cantilever jib, a flexible wire-rope lifting element, and a hook with an integrated swivel.
The manipulator is supplied with magnetic and mechanical gripping devices for handling round products. The equipment was designed and manufactured in the Russian Federation by Russian Manipulator Company.
Purpose and Design Features
The RMK CM-125-PP Pneumatic Cable Manipulator is designed to transfer roller-type products from production equipment into transport containers. Its use reduces the labor intensity of auxiliary operations and enables products to be lifted, moved, and positioned within the specified working area.
The supporting structure consists of a stationary column with a mounting flange. A rigid two-section cantilever jib is installed on the column through a slewing unit. The two sections are connected by an intermediate joint that enables relative rotation in the horizontal plane.
A linear drive consisting of a pneumatic cylinder and pulley transmission is installed inside the first jib section. Motion from the cylinder is transmitted to a flexible wire-rope lifting element. A pulley at the end of the second section guides the wire rope into a freely suspended vertical position. A hook with an integrated swivel is attached to the end of the wire rope.
The slewing unit provides unrestricted 360° rotation of the jib around the column. The intermediate joint has a rotation angle of up to 300°, while the swivel enables the hook to rotate 360° relative to the wire rope. This kinematic arrangement provides access to points within the working area throughout the specified horizontal working radius and vertical stroke.
The manipulator features a reinforced supporting structure and mechanical components designed with an increased safety margin and extended service life. The compact jib arrangement enables the equipment to be installed close to a wall or production machinery. A pass-through compressed-air supply within the slewing unit prevents restrictions caused by pneumatic lines twisting as the jib rotates.
Control System
The RMK CM-125-PP is equipped with a stepless dynamic control system for load balancing and vertical movement. Pneumatic semi-automatic balancing reduces the force the operator must apply when lifting and positioning a product.
Vertical movement can be controlled in two ways:
- Using the rotary control handle: the operator controls the drive through the pendant, ensuring smooth, precise movement and positioning of the payload.
- By applying force directly to the load: the operator moves the load or gripping device directly, enabling more accurate positioning of the product.
The control pendant is integrated into the gripping-device suspension. It contains the operating-mode controls, parking-brake controls, balancing-force adjustment, a balancing-pressure gauge, and a fixed handle.
All horizontal movements of the jib sections are performed freely through direct operator force applied to the handle, load, or gripping device. For more accurate positioning, the operator reduces the movement speed as the product approaches its placement point.
Cable Manipulator Components
The RMK CM-125-PP design includes the main supporting, drive, control, and load-handling components:
- Stationary column: serves as the supporting base for the cantilever jib and is secured to a prepared foundation through the mounting flange.
- Mounting flange: has overall dimensions of 550 × 550 mm. The center-to-center spacing between the four mounting holes is 500 × 500 mm.
- Slewing unit: connects the column to the jib and provides unrestricted 360° rotation in the horizontal plane.
- Two-section cantilever jib: consists of two rigid sections connected by an intermediate joint with a rotation angle of up to 300°.
- Pneumatic drive: is based on a rod-type pneumatic cylinder compliant with ISO 15552 and installed inside the cantilever section.
- Pulley transmission: transmits motion from the pneumatic cylinder to the flexible wire-rope lifting element.
- Lifting element: consists of a flexible wire rope that provides vertical movement of the suspended gripping device.
- Hook with swivel: is attached to the end of the wire rope and can rotate through 360°, simplifying load orientation during handling.
- Air preparation unit: includes a connection fitting, a lockable manual shut-off valve, and a combined filter pressure regulator.
- Pneumatic lines: the supply line passes through the slewing unit, while the control lines are routed inside the cantilever section.
- Working-area limiters: adjustable stops on the slewing unit and intermediate joint enable the permissible jib rotation angles to be configured.
- Parking-position locking mechanisms: prevent unintended movement of the jib sections when the manipulator is parked without a payload.
- PML 300 magnetic gripper: is designed to lift round products weighing up to 150 kg and sheet products weighing up to 300 kg. The gripper is activated manually and has a lifting eye for attachment to the hook.
- Mechanical pincer gripper: is designed for the vertical handling of round products with diameters from 76 to 219 mm and weights up to 150 kg. The gripper is activated manually.
The flexible wire-rope lifting element reduces the mass of the moving assembly compared with manipulators in which the drive moves both the load and jib components. This reduces system inertia and simplifies the rapid, precise handling of relatively light loads.
Compliance and Safety
The manipulator is manufactured in accordance with applicable safety, occupational health, and environmental requirements. The proposed configuration complies with the 6K heavy-duty operating class under GOST 25546-82 and has a fire-safe and explosion-protected design.
The pneumatic safety system is based on fast-acting valves. It prevents the payload from falling in the event of an emergency compressed-air supply failure or a break in the pneumatic lines.
The design includes the necessary safety devices. The equipment has a certificate of conformity with the requirements of Technical Regulation TR CU 010/2011 “On Safety of Machinery and Equipment.”
The manipulator is supplied with a set of technical documentation that includes the technical passport, operation and maintenance manual, dimensional 3D model, drawings of wear parts, pneumatic installation and circuit diagrams, list of spare parts, tools, and accessories, and certificate of conformity.
Technical Specifications
The main specifications of the RMK CM-125-PP Industrial Cable Manipulator and the gripping devices included in the scope of supply are provided in the table.
| Parameter | Value |
|---|---|
| Equipment type | Industrial cable manipulator with a pneumatic drive |
| Configuration | Stationary, custom-built, column-mounted |
| Lifting capacity | 125 kg at an operating pressure of 7 bar and an arm reach of 3,500 mm, excluding the weight of the gripping device |
| Horizontal working radius | 3,700 mm |
| Vertical stroke | 1,800 mm |
| Jib design | Rigid two-section cantilever jib with an intermediate joint |
| Drive type | Rod-type pneumatic cylinder compliant with ISO 15552 |
| Lifting element | Flexible wire rope with a suspended gripping device |
| End effector | Hook with swivel |
| Slewing-unit rotation angle | 360°, unrestricted rotation |
| Intermediate-joint rotation angle | 300° |
| Hook-swivel rotation angle | 360° |
| Operating class | 6K, heavy-duty operation according to GOST 25546-82 |
| Safety design | Fire-safe and explosion-protected design |
| Climatic design and placement category | U3 (У3), indoor operation |
| Minimum compressed-air pressure | 7 bar |
| Compressed-air flow rate | At least 2,000 Nl/min or 285 l/min at a pressure of 7 bar |
| Compressed-air purity class | Not lower than 3.4.3 according to GOST R ISO 8573-1-2011 or class 7 according to GOST 17433-80 |
| Mounting-flange dimensions | 550 × 550 mm |
| Mounting-hole pattern | 500 × 500 mm, four holes |
| Magnetic gripper | PML 300 with manual activation |
| Magnetic-gripper lifting capacity for sheet products | 300 kg |
| Magnetic-gripper lifting capacity for round products | 150 kg |
| Magnetic-gripper breakaway capacity | 750 kg |
| Magnetic-gripper dimensions without packaging | 90 × 167 × 210 mm |
| Magnetic-gripper weight | 8.5 kg |
| Mechanical gripper | Vertical pincer gripper with manual activation |
| Mechanical-gripper lifting capacity | Up to 150 kg |
| Diameter of handled round products | 76 to 219 mm |
The permissible payload of the complete system is determined by the lowest-rated component and must not exceed the manipulator’s rated lifting capacity minus the weight of the installed gripping device.
Operating Conditions
The manipulator is designed for operation inside industrial facilities. The equipment may be used in premises classified as fire-hazard zones P-I, P-II, P-IIa, and P-III.
The following environmental conditions must be maintained during operation:
- Ambient temperature: from +5 to +40 °C.
- Relative humidity: no more than 80%.
- Air quality: the environment must be free from abrasive dust and heavy contamination, including metalworking fluids and soot.
- Exposure to liquids: direct exposure of the equipment to liquids is not permitted.
- Pneumatic-line parameters: pressure of at least 7 bar and a flow rate of at least 2,000 Nl/min or 285 l/min at 7 bar.
- Air-supply stability: pressure and volumetric-flow fluctuations greater than 10% are not permitted.
The manipulator may be stored in an assembled or disassembled condition under equivalent environmental conditions.
Packaging and Transportation
The equipment is supplied in secure packaging that complies with international standards and the manufacturer’s requirements. This protects the equipment during transportation by any mode of transport.
The equipment is manufactured in compliance with safety, labor protection, and environmental requirements in accordance with current standards.
The equipment includes all the necessary safety devices, the presence of which is determined by current standards.
The equipment has a certificate of conformity for compliance with the requirements of TR CU 010/2011 "On the Safety of Machinery and Equipment."
The equipment is delivered in packaging that corresponds to the nature of the equipment, established by international standards and technical requirements. Manufacturer's packaging.
Equipment packaging ensures its safety during transportation by any mode and means of transport.
- 24 months from the date of equipment delivery – for main structures, components, and mechanisms of the equipment
- 12 months from the date of equipment delivery – for individual equipment parts, namely, purchased third-party components included in the equipment (pneumatic, electrical, hydraulic components, automation components, bearings, guides, mechanical transmission components, cables, hoses, fasteners, etc.)
An extension of the warranty period is possible subject to the conclusion of a post-warranty service agreement with RMK.
During the warranty period, RMK guarantees the elimination of obvious or hidden design and manufacturing defects related to the design, materials and components used, or workmanship, and ensures the operation of the equipment in accordance with the technical parameters and technological process stipulated in the Data Sheet and/or Operation Manual.
Along with the equipment, RMK develops and delivers a complete set of operating documentation:
- Passport;
- Operation and Maintenance Manual;
- 3D Dimensional Model;
- Drawings of Wear Parts;
- List of Spare Parts;
- Certificate of Conformity.