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©
COPYRIGHT: MARSDEN MANUFACTURING Ltd (aka MARSDEN ENGINEERING), All rights reserved. (For publication date and contact address, see titleblock). This document and any designs depicted on it may not be used, sold, stored in any form, or divulged to third parties, without prior permission
HOW IT WORKS
WHY BUY A MARSDEZYN RIP-TRIP ?
A belt rip or peeling bottom cover, dangles down and strikes the comb, flipping it over and tripping the proximity sensor.
This signals the conveyor controller to alarm and/or stop.
Instead of industry standard rip and wander detection switchgear?
· Only one circuit to wire on site instead of four; simple and economic.
· Re-set from either side of the conveyor, and without crawling underneath.
· No loose trip-cable to retrieve or untangle from downstream idlers, as with other devices.
· A complete solution in one compact package, just drill four holes, no brackets to make.
· Separate adjustment for defect size and sensitivity, to optimize trip setting.
To RE-SET, swing the comb back up to click the detent cam back into place. (Can do from either side of the conveyor).
If the belt wanders excessively ("tracks off") its edge strikes the wing tip, and trips the switch.
If the belt bounces excessively, ("belt flap") it will strike the comb and trip the switch.
Adjust Size of defect and bounce tolerated by raising/lowering the unit on its mounting studs; comb wings may also tilt to
reduce/increase the gap near the belt edges. Wingtips adjust to set a wander tolerance.
Adjustable wing tips trip the
unit if the belt wanders
Set an Impact Sensitivity by adjusting the detent cam pressure, high enough to eliminate nuisance tripping (wind, vibration).
gap g
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b
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ippi
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Idler illustrated here has
20° trough x Ø102 rollers
see notes
Detent Cam: adjust this to
set the impact sensitivity
Adjusts for any trough angle
from 20° to 45° and any idler
roller from Ø102 to Ø152
Gap adjustable
for defect
tolerance
REVERSE BELT TRAVEL
NORMAL BELT TRAVEL
Junction Box
(see electrical note)
Proximity switch
(see electrical note)
SHAFT
Don't mount on top of a dust
cover or beam, where
accumulating debris may jam it.
Adjust nuts to set
desired gap between
comb and belt (defect
size sensitivity)
Bolt centers always match idler bolt centers
Drill frame Ø14 and mount with
bolts downward, away from
dirt. Only mount pointing up if
the conveyor frame clashes.
ELECTRICAL NOTES
Mounting holes are provided for a PDL junction box WJ1 (83x83mm
rated IP56). No electrical hardware is supplied unless requested.
Proximity switch: Any make/model/type may be used that has 8mm
sensing distance, and maximum Ø20 size. Example:
Telemecanique Osiconcept XS618B1. It must be wired with
normally closed contacts when sensing metal (i.e. "fail safe")
UNITS AVAILABLE
Belts 400 wide to 1350 wide, 3-roll trough 20° to 45°, Ø102 to Ø152 idlers
Return strand of belt, 400 to 1350 wide
Larger sizes and Flat-belt units are under development.
For safety, the conveyor must not restart automatically after the
comb is set back in place. The system may be "enabled" but only
restarted by pressing a start button.
Caution: Due to ongoing development, some features on this promotional
illustration may not exactly match the product being sold.
C:\0 MARSDEZYN\0 STD DESIGNS\MBE Belt Conv Electric Trips\DRAWINGS\MBE-RIP Rip & Wander Trip Mk2 v3.dwg
Marsden Engineering Presents The
!
Marsdezyn
RIP - TRIP
CONVEYOR BELT RIP AND WANDER DETECTOR
200
Minimise
56
MOUNTING LOCATION
Locate the Rip-Trip as close as possible to an idler (leading
is preferred, as shown); swing the comb to its stops to
confirm free travel.
At the idler, the belt best conforms to the true trough
geometry. Mounting further away where the belt sags and
bulges will require setting the comb further down from the
belt surface to avoid nuisance tripping, and this will reduce
effectiveness.
1 McKechnie st (off Majors road) Geraldine 7930
PO Box 96 Phone: 03 693 9634
After hours: 027 242 2110
www.marsdenengineering.co.nz email: [email protected]
INITIALS & REV DATE
IM 16-04-2015
A3
3rd L
Projection
DRAWING NUMBER
MBE-RIP-000
SHEET
REVISION
2 of 3 C
C:\0 MARSDEZYN\0 STD DESIGNS\MBE Belt Conv Electric Trips\DRAWINGS\MBE-RIP Rip & Wander Trip Mk2 v3.dwg
©
COPYRIGHT: MARSDEN ENGINEERING Ltd, All rights reserved. (For publication date and contact address, see titleblock). This document and any designs depicted on it may not be used, sold, stored in any form, or divulged to third parties, without prior permission of MARSDEN ENGINEERING Ltd
Caution: Due to ongoing development,
some features on this sales illustration may
not exactly match actual hardware
SALES PROMOTION AND INSTALLATION DRAWING
MBE-RIP-000 Sheet 2
400 to 500 Belt Width, Flat Return Belt
600 to 900 Belt Width, Flat Return Belt
1000 to 1350 Belt Width, Flat Return Belt
MBE-RIP-004
MBE-RIP-005
MBE-RIP-006
400 to 500 Belt Width, 20° to 45° 3-Roll Trough
600 to 900 Belt Width, 20° to 45° 3-Roll Trough
1000 to 1350 Belt Width, 20° to 45° 3-Roll Trough
MBE-RIP-001
MBE-RIP-002
MBE-RIP-003
B
2014-11-05 General revision
A
2014-08-13 Issued for pricing, review, & promotion
REV
DATE
IM
DESCRIPTION
IM
BY
1 McKechnie st (off Majors road)
Geraldine 7930
PO Box 96 Geraldine 7956
phone: 03 693 9634
After hours: 027 242 2110
www.marsdenengineering.co.nz
email: [email protected]
UNLESS OTHERWISE STATED All dimensions are in millimeters, "typical", DESIGNER / DATE
and symmetrical about centerlines. Tolerance ±1 on last digit if < 3000mm; IM 2014-08-06
± 2mm if <10m, and ± 3mm thereafter.
3rd L
Projection
Remove all sharp features "handsafe". Minimum weld FPBW or 5 continuous fillet
NOT TO SCALE
MB = MATERIAL HANDLING, BELT CONVEYOR
ELECTRICAL DEVICES - RIP & WANDER TRIP
GENERAL CATALOGUE
TRUE SCALE BAR
CORRECT AT ANY PRINT SIZE
ORIGINAL SCALE
none
AT
CLIENT
Marsden Engineering Ltd
MARSDEZYN STANDARD DESIGNS
DRAWING NUMBER
A3 MBE-RIP-000
SHEET
REVISION
1 of 3 B