industrial shredders Archivi - SatrindTech Srl

Extraordinary maintenance of industrial shredder: a real case

satrind_usr_adm — Mon, 25 May 2020 08:05:51 +0000

The daily work of an industrial shredder is often very demanding, especially in cases where it has to grind especially wearing materials such as tyres, plastic films and agricultural tarpaulins, electric cables and metals.

Thus, harsh working conditions, even within multiple shifts, can lead to wear on the blades, blade shafts, bearings and seals and selection screens, for which routine maintenance is no longer sufficient to ensure optimal operating performance in terms of efficiency and effectiveness, and performance can drop significantly.

In this case, it may become necessary to perform extraordinary maintenance work on the industrial shredder to restore it to its original factory conditions.

Example image of the conditions of a 150 HP shredder returned by the customer

The intervention planned with the customer normally involves pick-up of the machine for disassembly on the ground at SatrindTech’s service department.

Methods of intervention

As it proceeds, complete disassembly allows our technicians to analyse all the parts in order to evaluate which are the most worn and to propose a suitable solution to the customer for extraordinary maintenance of the industrial shredder.

In most cases, this involves:

Blade re-sharpening
Condition of the hexagonal blade shafts (blade marking)
Replacement of all seals (O-rings, oil seals) and mechanical seals
Replacement of the seals (packings) of the intermediate bulkheads protecting the bearings
Restoration of worn seats in which the seals are working by means of bushing

Intervention also involves verification of the conditions of the motor both as regards electric motors and hydraulic pumps and motors, for which in some cases an overhaul by the manufacturer may be necessary.

At the end of the extraordinary maintenance of the industrial shredder, re-testing follows according to SatrindTech’s control specifications and only after the product has been issued to the customer.

The150 HP shredder after maintenance work

A real case

The video below instead shows extraordinary maintenance of the industrial shredder with 3 shafts in the 3K 60 HP series, equipped with 4 blades, 30 mm-picks and selection screens with 50 mm holes.

We have completely disassembled and overhauled the shredder, resharpened all the blades and replaced seals and mechanical seals. The blade shafts were in good condition and so were the gear wheels of the main reduction unit. The material selection screens were also in no particular conditions of wear.

All operations are performed within SatrindTech’s technical service department, including grinding the blades to the most suitable thickness and tolerance values.

Fill in the form below and our Service Department will gladly evaluate all your needs for routine and extraordinary maintenance of your industrial shredder.

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Maintenance of industrial shredders

satrind_usr_adm — Fri, 17 Apr 2020 12:17:56 +0000

The maintenance of industrial shredders, as in general for all machinery, is used to keep the shredder in efficient and effective operating conditions, with the aim of extending their useful life.

Maintenance is split into ordinary and extraordinary.

Ordinary maintenance interventions include a series of periodic checks and interventions to be carried out at established time intervals; other types of extraordinary interventions depend essentially on the operating conditions and therefore on the degree of wear suffered by the shredder.

During normal operation of the shredder it is important to check the oil level in the reduction unit and in the front bearing housings through the specific level indicators, as well as the areas between the bulkheads of the grinding chamber and the front flange must be periodically cleaned, where the intermediate seals are located.

Finally, it is extremely important to check that the blades are always perfectly tightened, as, otherwise, they could interfere with each other and become damaged or break. However for some of our new series of shredders this is not even necessary.

With regard to extraordinary maintenance, consider the condition of the blades. The blades give their best performance when their external profile has a sharp and cutting edge.

With wear it is natural that the productivity of the machine is reduced. It will therefore be necessary to sharpen the blades when their edges become rounded.

Our after-sales service is available with competence and quick help-desk support times.

For the repair and maintenance of industrial shredders, our assistance personnel, who travel worldwide for on-site interventions, are able to support you at all times.

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Ecomondo 2018 News: 2-shaft industrial shredder 150 HP electric drive with automatic transmission

satrind_usr_adm — Tue, 06 Nov 2018 13:58:54 +0000

A revolutionary motor: 2-shaft industrial shredder 150 HP electric drive with automatic transmission

Between 6-9 November 2018, SatrindTech will be in Rimini to unveil its latest innovation – a new electric motor with automatic transmission. Are we at the Motorshow?

Absolutely not. We are attending the Ecomondo exhibition and our revolutionary new electric motor drive is not intended for vehicles, but for our latest 2-shaft industrial shredder 150 HP electric drive with automatic transmission.

Ecomondo 2018, SatrindTech latest products

Waste, water, energy and the circular economy – more than 1,000 companies and 120,000 visitors will gather at Ecomondo to rethink the relationship between industry and sustainability.

In the spirit of this initiative, SatrindTech is pleased to present the new application of its revolutionary electric motor drive for high power shredders – the 2-shaft industrial shredder 150 HP electric drive with automatic transmission.

SatrindTech expands this innovative motor drive, which was already successfully applied to 50 HP 2-shaft shredders, which is currently standard for its K50/M, and applying it to the more powerful 2-shaft shredder ranges. There are two versions of shredders suitable for the new motor drive – 150 HP and 100 HP.

And there is more. At Ecomondo 2018 we will reveal another recent item from our catalogue the 4S range 4-shaft shredder electric drive with power ranging from 40 to 60 HP.

The new products answer new industry needs which are today more sensitive than ever to issues such as energy efficiency, sustainability and recycling. By working closely with our customers and partners (who appreciate us for our meticulousness) we have designed products based on their feedback and the specific needs of each shredding application.

Why an industrial electric shredder with automatic transmission?

Productivity, compactness, quietness and ease of maintenance are the basic features that distinguish the automatic transmission used for the K50/M range. Building on this product’s success, we have tried to replicate its advantages and strengths in a larger and more powerful format. The 150 HP and 100 HP versions further improve motion transmission technical elements and are among the most innovative devices in the industrial shredder market.

With the 2-shaft industrial shredder 150 HP electric drive with automatic transmission you can replace the bulky and noisy hydraulic power unit with a more compact electric motor drive. This is a great competitive advantage for the customer, and a lower management cost. The operating logic is governed by a programmable logic controller (PLC) and the machine follows Industry 4.0 standards.

The best power transmission management by the 150 HP (or 100 HP) motor avoids any start-up phase peak due to high power consumption and achieves the best torque in the shortest time. As in the K50/M range, the system “combines the automatic torque and speed control capability typical of a hydraulic drive with the advantages of an electric drive.”