Product Description

CP 4005 Blower from MD Pneumatics / Tuthill

The 4005 CP Positive Displacement Blower is a model from Tuthill’s M-D Pneumatics division.

These units are designed to be interchangeable with equivalent Roots™ URAI models. pdblowers is the largest distributor for Howden Roots, the top manufacturer of positive displacement blowers, and we keep many Roots URAI blowers in stock and ready to ship. We also offer repair services for the Tuthill Competitor blowers. Click here to learn more about Tuthill 4005 blower repair.

The Roots equivalent for a 4005 blower is the Roots 45 URAI, although it is always recommended to check your specific performance requirements when selecting a blower. A basic comparison of specs is below; for more information or to buy online, click here for the Roots 45 URAI blower. Please note the 4005 CP blower is available with 2 lobes or 3 lobes; the specs shown below apply to the 2 lobe unit.

Tuthill 4005 vs Roots 45 URAI

	CP 4005	URAI 45
Flow Range:	to 373 CFM	to 395 CFM
Max Δ Pressure:	10 psi	10 psi
Max Δ Vacuum:	16″ Hg	15″ Hg
Maximum RPM:	3600	3600
Minimum RPM:	850	848
Max ΔT:	210˚F	225˚F
Connection:	2.5″ NPT	2.5″ NPT
Shaft Dia.:	0.875″	0.875″
Drive End Lubrication:	Grease	Grease
Gear End Lubrication:	Oil	Oil
Required Oil for Horizontal Unit:	8.5 ounces	22.8 ounces
Required Oil for Vertical Unit:	5.8 ounces	12.7 ounces
Unit Weight:	127 lb	109 lb

Tuthill Model Numbers

Model numbers consist of 13-15 characters and will be stamped on a nameplate attached to the blower, along with the unique serial and year of manufacture. The first four characters of the model number indicate gear diameter and rotor length. The remainder of the characters indicate other blower configuration options including the types of lubrication and seals, lobes, drive location, blower materials, etc. An example part number is 4005-A6L2CV1. Please note older part numbers had a different structure: example 4005-21L2.