Re: SL Resin Strength

From: Simon_Van_de_Crommert/gmbh/
Date: Tue Jan 26 1999 - 16:39:38 EET

In the Q3 1998 issue of HORIZONS DTM published a case study on a water pump
part which according Fluid Technologies (a firm that develops and engineers
high-performance water pumps) could not be made in SLA (not durable enough
for the level of testing) therefore they tried SLS DuraForm PA (polyamide),
the pump impeller was made by a German Service Bureaux called RPM GmbH.

Their test data for the water pump impeller:
Powder imput data: up to 60 kW
Rotational speed: up to 2,400 rpm
Momentum: up to 275 Nm
Volume per minute: up to 3,000 lpm
Pressure in the pump: up to 18 bar

Simon van de Crommert
DTM (UK) Ltd.

Drew Brown <> on 26/01/99 13:34:38

Please respond to

cc: "'RP-ML'" <> (bcc: Simon Van de Crommert/DTM)
Subject: Re: SL Resin Strength

Note: Some recipients have been dropped due to syntax errors.
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We've built several fans for testing applications (including automotive)
using the SLS technology. The composite nylon (Prototform) withstands most
tests requirements and has much better strength and thermal resistance than

Let us know if you need any assistance.

Drew Brown
Conceptual Reality L.L.C.


> Hello all,
> I have a customer who wishes to make automotive HVAC air blower fans
> (hamster wheels, i.e., open-ended cylinders with blades on the
> periphery). They wish to test them at 1000-1500 RPM. Will the SL resin
> be able to do the job (SL5410)? Has anyone else done something similar?
> Thanks
> ---
> Regards,
> Dan Davis
> PROTON Rapid Prototyping & Manufacturing Center
> Hicom Industrial Estate
> Batu Tiga, PO Box 7100
> Shah Alam, 40918 Selangor MALAYSIA
> +60 3 515-2380 phone/fax
> For more information about the rp-ml, see

For more information about the rp-ml, see

For more information about the rp-ml, see

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