Conveyor Slow Speed Holdbacks and Backstops

The Rotech Slow Speed Backstops type RS-Roller Ramp is manufactured in RSA under ISO9001:2015 Quality Management Systems. Primarily used on incline conveyors, the backstops are mounted without heating. The local manufacture means better pricing for our clients as well as improved turnaround times for delivery.

Backstop Size Selection for Single Drive

Motor Kw x 9550 / Output RPM = Nm Torque

Nm Torque x 1.3 (service factor) = Selection, Sized on Torque and Shaft Size

Backstop Size	H7 Max Bore mm	Torque Nm (min)	Torque Nm (max)	Max RPM	A mm	B mm	C mm	D mm	F mm	G mm	L mm	W	Approx Weight Kg
RS-100RR	100	8100	16200	280	124.5	920	187	250	120	64	160	184	79
RS-115RR	115	16250	32500	250	146	1272	223	292	140	73	166	190	120
RS-140RR	140	24410	48820	180	170	1435	259	372	160	82	175	205	168
RS-160RR	165	36610	64067	150	192	1684	274	416	180	91	182	212	243
RS-180RR	180	65148	114079	135	216	1830	330	470	203	133	205	235	386
RS-200RR	200	85417	149479	120	244	1981	340	534	254	146	248.5	278	497
RS-230RR	230	122000	213500	105	270	2080	382	573	305	165	270	300	596
RS-280RR	280	174464	305313	90	308	2235	427	649	356	171	300	330	817
RS-300RR	300	234047	409502	80	360	2400	460	754	457	191	339	369	1205

INstallation

Backstop bores are straight and finished for an EASY PUSH ON FIT on an equally straight and clean shaft.
Make DOUBLE Sure that the Free Running of the Backstop matches the directional rotating of the shaft (Conveyor)
Remember to install keeper plate after Backstop is installed onto the shaft.
Make sure Torque Arm is not rigidly mounted, must have at least 20mm gap either side of the stirrup.
When the Backstop has been installed, make sure the breather is fitted at the top inlet plug and the oil indication pipe (sightglass) vertically to the angle of operation.

Lubrication

Backstop Supplied with Storage Oil
Once Installed drain and slowly ll to half the volume of the Backstop (the oil breather should be removed to fill the Backstop)
Required Oil = Multigrade SAE10W- 40(46/48) at working temperature 0ºC & 80ºC.