Chain hoists

[ImagineerTom]

Just pricing up a possible tour project that will need to BUY approx. 24 x 1 ton chain hoists @18m drop and basic control (they're for rigging, not synchronised show movement) - any pointers for models that will be the most universally accepted, suppliers and prices? Edited March 18, 2021 by ImagineerTom

[operalx]

EXE Rise or Liftkets are my preferred hoists.

Area 4 for the EXEs and Unusual for the Liftkets.

 

EXEs probably edge Liftket these days, very popular hoists for good reason.

 

Hoist manufacturers aren’t really advertising anything to EN17206 yet, but if you can, try and get hoists to 17206.

Conservatively assuming you will be lifting statically indeterminate load systems, you will be after ‘Use Case 2’ if you don’t want to move your loads ‘with persons in the hazard zone’ and ‘Use Case 4’ if you want to be able to move your loads ‘with persons in the hazard zone’.

 

Failing that, D8+.

 

E2A: Conformity to EN17206 places requirements on your system as a whole. The control system will be based on your desired use case. This may sound burdensome, but the hope is this will make touring Europe with a hoist package far simpler.

Edited March 18, 2021 by operalx

[Bryson]

I'm not familiar with the current Euro standards (I'm in North America.). Is EN17206 the same or similar to what they used to call VGB70? (Or BGV C1.). Or something else?

[operalx]

VBG70 was replaced by DGUV 17/18 initially.

 

Short answer yes, EN17206 should replace common non-German usage of terms such as D8, D8+ and C1 which are born from German CoPs. The classification of machinery under 17206 is done with ‘Use Cases’.

 

The earlier SqP2 was replaced by the CoP IGVW SQP2:10/2018 which was written with the then forthcoming EN17206 in mind.

DIN56950 which was the German entertainment machinery standard is superseded by EN17206 (Adopted as DIN EN 17206 in Germany).

In the UK, BS EN 17206 supersedes BS 7905-1.

 

Use Cases are defined in Annex B of the standard and Annex C contains recommend safety functions and measures for each Use case.

Edited March 18, 2021 by operalx

[ontoprigger]

I would also recommend the EXE rise hoists they are well made and designed specifically for entertainment rigging unlike most others that were simply modified to suit

.

They are also semi future proofed as you can add extras along the way. Its easy to add a load cell down the line if you find thats something you will need, by just changing the end cover for the load cell display unit and swapping over the motor body hook.

Likewise you can fit an encoder or encoders should you find that you need positioning as they have built in the provision for that from the start.

 

They are also FEM class 2m giving them a higher duty cycle than most other hoists out there.

[dje]

Area 4 for the EXEs and Unusual for the Liftkets.

 

You can buy Liftkets direct in the UK now - John Jones (formerly of PCM / Lift Turn Move etc) is their UK sales rep. (john.jones@liftket.de)

 

I personally rate the Liftket over the EXE Rise on the sole premise of spares availability worldwide.

Personally I also think GIS / Loadguard motors are worth looking at - for a slightly different reason. They're a bit big and heavy compared to other alternatives, but their 'tropicalised' hoist (wax dipped transformer, galv chain, IP67 enclosure) makes them far better outdoors than any other entertainment hoist.

I have seen Loadguard LG16s left outside for 3 months in a coastal town, externally they came back looking like absolute death and once the chains had been put through a good clean to get the surface rust off, and the bodies washed down with hot soapy water, they looked good as new. Internally they were unaffected.

[ImagineerTom]

Thankyou everyone - RFQ’s have gone to all your suggestions and I have realised just how out of touch I am with modern hoist standards.