9D715

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The 9D715 is a pre-resonant type machine which has been designed to solve a wide range of problems. The machine has become very popular in many repair shops and services, as well as in production facilities in various industries, as it has the ability to balance parts weighing from 1 to 100 kg. Such a range of load capacity and well thought-out design of all components of the machine made it one of the most versatile machines of this type.

The equipment allows balancing parts of any configuration, thanks to the patented design “MODULAR DESIGN”, which allows changing the characteristics of the machine by replacing modules or accessories, thus the machine can be used for balancing inter-support rotors, parts in their own bearings and using mandrels to balance single plane rotors of the “disk” type, even if they do not have their own journals for installation. In addition, the design of the protective bracket with radial stops allows safe handling of cantilevered parts, eliminating the possibility of their tipping over during balancing.

The standard design of the machine contains a monolithic bed, two supports of pre-resonance type that are made of a single piece of sheet metal, as well as “belt drive” having a patented unique design “LONG STROKE” that allows you to work with a large range of products that differ significantly in size using only two types of drive belts instead of 20. Safety of work with “belt drive” is provided by axial stops that limit axial displacement of the part during balancing and adjustment. “Axial” and “radial” stops are also made by patented technology “MOVING ROLLER” that allows to exclude the occurrence of measurement errors associated with the contact of the stops with the workpiece.

The control of the frequency-controlled electric drive as well as the unbalance measurement process and the various machine systems is realized by means of a control panel, which is part of the control cabinet containing modern electrical components ensuring the reliability of the machine systems.

The machine can be optionally equipped with “axial drive”, “unbalance correction module” or “shockless jacks”. The machine can be optionally equipped with an “axial drive”, “unbalance correction module” or “shockless jacks”;
The monolithic construction of the supports and bed eliminates vibration loss and ensures high quality measurements;
By ordering a special version of the bed it is possible to work with parts even with a length of 12 meters;
All machine cables are protected by metal sleeves, which provide increased mechanical protection and high noise immunity in all conditions;
High supports and their design allows balancing of oversized rotors with diameter not exceeding 1100 mm;
The support rollers are made with the patented grinding operation “exact barrel”, which ensures the balancing accuracy of 0.4 g*mm/kg;
The electric drive is equipped with a motor with a large power reserve, which ensures fast acceleration/deceleration of the part and long motor life.

Balance cycle 25 sec;
Intuitive interface with graphical digital display of information and tolerance fields;
Unbalance unit selection for easy analysis;
Part speed display and prompts when leaving the set speed for quality unbalance measurements;
Saving the measurement history for in-depth analysis, which allows you to identify your mistakes, increasing the speed of mastering the machine and controlling the quality of work;
Selectable display of unbalance correction location information depending on the correction method used;
Unbalance reduction ratio of 95%, which means that the permissible unbalance values will be reached in less than five measurement cycles, regardless of the initial unbalance value.
Simple operation adapted to the needs of most people.

Main Specifications

Parameters	9D715
Balancing rotors weight range, kg	1 – 100
Maximum rotor diameter (over the bed), mm	1100
Rotor bearin journals diameter, mm	20 – 140
Distance between rotor bearing journal centers, mm, min/max	150 – 1350
Support type	Rollers
Minimal achievable residual specific unbalance, gmm/kg	0,4
Rotor rotation speed range, rpm	300 – 1500
Drive type	Frequency-controlled asynchronous electric drive
Electric motor power, kW	2,2
Drive gear type	Belt
Equipment	Balancing device
Bed length, mm	1600

MACHINES CAN BE DELIVERED WITH:

AXIAL (CARDAN) DRIVE PARTS;

A BELT DRIVE PARTS – OPTIONAL;

COMBINED – OPTIONAL.

The operation manual on the machine with acceptance tests reports and the basic electric circuit	1 pc.
The operation manual on balancing system	1 pc.

PRODUCT HIGHLIGHTS

Design features of the machine 9D715

Pre-resonant supports – work with heavy parts with high initial unbalance at safe speeds;
Adjustment of belt drive rollers – creating perfect belt contact with the workpiece surface, which eliminates the possibility of belt slippage without the need to make a strong tension that affects the quality of measurements;
Height adjustment of the support rollers – balancing of parts with different diameter support journals, as well as the ability to adjust the position of the part in case of axial displacement during setup;
Narrow roller cassettes and rollers – provide the ability to install structurally complex parts such as the crankshaft where the journals have a small width and are difficult to access due to the close proximity of structural elements.

Patented design of supports with micro-tuning mechanism “micro-tuning mechanism” – possibility of precise adjustment of supports, which allows to eliminate axial displacement of the part during setting due to the effect of “left/right threads”, as well as allows to eliminate the appearance of “left/right threads”. and also allows to eliminate the appearance of knurling marks on the “raw” journals of the part;

PAK-1 BALANCING SYSTEM

Firstly, the digital system is based on an industrial fanless computer with a touch screen and a measuring unit.

Secondly, set-up mode by “triple start-ups” method with the use of calibration weights on the serial rotors with initial unbalance.

At last, calibration of the machine is made by the operator enabling to reach the maximum sensitivity of the machine, thus exempting from the duty to pay annual calibration fees.

Even so, take in consideration following functions:

Calculation of the balance tolerance values in default of technical documentation for the balancing product.
Value calculation of the correction test weights to simplify the tuning process for the balancing rotor.
Real-time balancing display, i.e. if there is any defect or a hindrance of a rotor, it’s visible immediately as fluctuation in measurement result.
View of unbalance value in grams, gmm, gsm, gmm / kg optionally.
Taking into account the eccentricity of the balancing mandrel.

Unbalance distribution on n-planes correction
Calculation of hole depth for correction of unbalance.
Possibility of decomposition of correcting weights into structurally conditioned anchoring points (blades, fans, slots).
Rotor balancing report creating and printing.
USB port for printer connection, USB-flash memory, port for connecting to local network and Ethernet network.