Comparison of Three Quality Slip Rings to Mercotac Model 430
Specification |
Brand
|
|||
|
Mercotac ® |
Slip Ring |
Slip Ring Brand #2 U.S.A. |
Slip Ring |
|
|
No. of Contacts
|
4 |
4 |
4 |
4 |
|
Contact Resistance Ohms |
.001* |
.0125 |
.008 |
na |
|
Price Ratio
|
1* |
2.7 x |
3.5 x |
3.6 x |
|
Maintenance Interval / Revs. |
Zero* |
500,000** |
500,000 |
500,000** |
|
Life Cycle in Revolutions |
500,000,000+* |
50,000,000 |
6,000,000 |
10,000,000 |
|
Speed RPM |
1200* |
100 |
500 |
125 |
|
Voltage Range
|
0-250 |
120-300 |
0-150 |
0-600 |
|
Amps Range
|
0-30 |
0-40 |
0-5 |
0-35 |
|
Real Life Example Based on a laminating machine operating one eight hour shift per day, five days per week.
|
||||
|
Maintenance Cost Over Lifetimef |
Zero |
$4,935 |
$588 |
$994 |
|
Lifetimef
|
72 mos. |
47 mos. |
5.6 mos. |
9.5 mos. |
|
TOTAL COST COMPARISON |
1.0 |
41.4 x |
8.1 x |
11.5 x |
** Industry recommended intervals, 500,000 revolutions or 6 months.
f Maintenance labor calculated at $50 per 45 min. maintenance interval. Lifetime based on 200 RPM for Mercotac, 100 RPM for Brand 1, Brand 2 and Brand 3.
*Critical Specifications in Chart showing Mercotac superiority
- Contact Resistance: The extremely low contact resistance of Mercotac connectors allows them to transmit low voltage signals without distortion which is not possible with slip rings.
- Price: Significantly lower cost of Mercotac units makes them usable in many applications where slip rings would be economically unfeasible.
- Maintenance: Zero maintenance of Mercotac connectors reduces customer labor costs significantly, making them much more affordable than slip rings.
- Life Cycle: The long life cycle of Mercotac connectors makes them more efficient and affordable than slip rings which need replacing much more often.
- RPM: The higher RPM specification of Mercotac connectors allows them to be used in applications where slip rings will not work.