ZPN for centrifuges with a trailing scroll

ZP – Planet Line

The highly dynamic centrifuge drive for high drum and differential speeds with a proven flange design and all-steel construction.

The drives in the ZP – Planet Line are suitable for all types of centrifuges:

ZPN – for centrifuges with a trailing scroll
ZPV – for centrifuges with a leading scroll (triple-stage drives only)
ZPR – regulated drive for centrifuges (four- shaft drive – triple-stage only)

ZP – Planet Line
Reduction ratios	20:1 to 224:1 ZPN (for centrifuges with a trailing scroll) 60:1 to 224:1 ZPV (for centrifuges with a trailing scroll) 60:1 to 224:1 ZPR (for centrifuges with a regulated drive)
Maximum torque	5 000 to 40 000 Nm
Number of sizes	6
Versions	Standard: Externally arranged centrifuge drive Alternative: Internal (with receptacle for centrifuge main bearing Standard: Hollow shaft (DIN 5480) with involute splines on the output side Alternative: Solid shaft (DIN 5480/keyway/cone/according to customer requirements)
Differential rotation speed	> 10 to 100 rpm

ZP - Secondary drives
Reduction ratios	3:1 and 4:1 ZPV with an input and output side with opposing directions of rotation 4:1 and 5:1 ZPN with the same direction of rotation at the input and output side 3:1 and 4:1 ZPR regulated drive ("four-shaft secondary drive")
Maximum torque	40 to 800 Nm
Number of sizes	4
Versions	Secondary drive with DIN 5480 hollow shaft according to customer specifications Alternative: Solid shaft (DIN 5480/keyway/cone/according to customer requirements)
Differential rotation speed	Up to 1 500 rpm

Key Product Facts

224:1

Triple-Stage Reduction Ratio

40,000 Nm

Maximum Torque

sizes from 5,000 Nm to 40,000 Nm

Features and Advantages of ZP – Planet Line

Optimized Housing

Coaxial all-steel housing optimized for use with centrifuges

High Power Density

High-power density and compact outer dimensions facilitate high-drum speeds

Long Lifetime

Long lifetime and high-operating safety due to high-gear interlocking security and
optimised shaft and planetary bearings

Lubrication

Oil-bath lubrication with closed gearbox

Suitable

Suitable for centrifuge models with an internal or external input / Suitable for centrifuges with a trailing scroll (standard); optionally with a leading scroll / Suitable for centrifuges with a fixed input shaft (torque arm or double belt drive) or with separate BackDrive (ZPN / ZPV) or as an independent regulating drive (ZPR)

ZP – Secondary drives

Four different single stage ZP sizes from 40 to 800 Nm are also available for centrifuges with two drives (internal primary gearbox for high torque values and external secondary gearbox to increase the reduction ratio).

Customizable

Able to be designed according to individual customer specifications

Balanced

Complete housing balanced (DIN ISO 1940)

ATEX Certified

ATEX certification in accordance with Group II (optional)

Technical Information

ZP – Planet Line*		2-Stage Reduction ratio				3-Stage Reduction ratio
Torque T Max (kNm)	ZPN, ZPV, ZPR	20	25	32	40	60	80	100	125	160	184	224
5	5 000	x	x	x	x	x	x	x	x	x	x	x
8	8 000	x	x	x	x	x	x	x	x	x	x	x
12	12 000	x	x	x	x	x	x	x	x	x	x	x
20	20 000	x	x	x	x	x	x	x	x	x	x	x
30	30 000	x	x	x	x	x	x	x	x	x	x	x
40	40 000	x	x	x	x	x	x	x	x	x	x	x

x: available
* ZPN for centrifuges with a trailing scroll (all reduction ratios)
* ZPV for centrifuges with a leading scroll (three-stage from i - 60)
* ZPR regulated drive for centrifuges (four-shaft drive – three-stages from i = 60)