8 bar 185 cfm Portable Diesel Driven Screw Air Compressor

A diesel mobile air compressor is an air compressor that is driven by a diesel engine and drives the rotation of the screw compressor rotor to compress air and other components. Mobile air compressors

  • Working Pressure:7~30[ bar ]101.5~435[ psig ]
  • Free Air Delivery:123.5~1200[ cfm ]3.5~34[ m3/min ]
  • Working Power:26.8~429[ kw ]30~520[ hp ]

Product Details

RKY3.5-7 (9).jpg

Product Features


Excellent versatility

Well-built construction and quality components ensure trouble-free operation in ambient temperatures ranging from -20°C to +45°C. The chassis further 

enhances its versatility, and can be equipped with a fixed or height-adjustable tow bar and an optional overrun brake. The fixed version can be mounted 

on rails or mechanical stands.

Lightweight

The RKY/RKYII is extremely easy to handle and transport. In addition, its larger diesel capacity ensures that the compressor has enough power to last a 

full work shift.

Separate air filters for engine and compressor

The air filters are tailored to meet the required air requirements, ensuring reliable system operation.

Optional diesel engines

Flexible diesel engines meet different operating environments and conditions, allowing customers to find the right parts supplier for routine maintenance, 

no matter where the compressor is located.

User-friendly

Operation is simple with user-friendly icons and a single start switch with preheating function. The unit also features fully automatic monitoring and automatic 

shutdown in the event of a fault.

Low noise

Adopting anti-noise shell design, low noise, suitable for use in urban environment.

High temperature resistant design

Even in an environment up to 48°C, the device can operate normally.

Technical Parameters

Rocky Portable Diesel Driven Screw Air Compressors (RKY Single-stage Series)
ModelRKY-3.5/7RKY-5/7RKY-6/7RKY-10/10RKY-10/12RKY-12/7RKY-12.5/14RKY-14/14RKY-15/15RKY-16/17RKY-18/17RKY-21/10RKY-23/14
Volume flow (m³/min)3.556.0510101212.5141516182123
Working pressure  (Barg)7771012714141517171014
Fuel tank volume(L)4570100140160160160160280280280360360
Maximum ambient temperature(℃)50505050505050505050505050
Compression stage1111111111111
Engine brandYANGMAWEICHAIWEICHAICUMMINSCUMMINSCUMMINSCUMMINSCUMMINSCUMMINSCUMMINSCUMMINSCUMMINSCUMMINS
Engine model3TNV88WP3.2G50E347WP3.2G61E317QSB3.9-C130QSB3.9-C130QSB3.9-C125QSB5.9-C180QSB5.9-C210QSB6.7-C240QSB6.7-C240QSC8.3-C260QSB6.7-C240QSL8.9-C325
Engine power(KW)26.836.845979793132154178194194178242
Maximum engine speed(Rpm)3000250025002200250023002000220020002200240020002100
Minimum engine speed(Rpm)1800175017501500150015001500150015001500150015001500
Wheels Qty2222222244444
Noise level(dB)75±375±375±380±380±380±385±385±385±385±388±388±388±3
Overall weight (kg)880120015501820184018602020222027502780291028403020
Dimensions(L*W*H)mm2853*1272*10923230*1440*14253300*1570*15603800*1900*19003800*1900*19003800*1900*19004350*1960*19504350*1960*19503980*1860*24503980*1860*24503980*1860*24504580*1950*25004580*1950*2500
Air outlet (inch)2*G3/4G1,G3/4G1-1/4,*G1G1-1/2, 2*G1-1/4G1-1/2, 2*G1-1/4G1-1/2, 2*G1-1/4G1-1/2, 2*G1-1/4G1-1/2, 2*G1-1/4G1-1/2, 3*G1-1/4G1-1/2, 3*G1-1/4G1-1/2, 3*G1-1/4G1-1/2, 3*G1-1/4G1-1/2, 3*G1-1/4
Rocky Portable Diesel Driven Screw Air Compressors (RKYII Two-stage Series)
ModelRKYII-27/12RKYII-30/10RKYII-18/25RKYII-34/9RKYII-30/12RKYII-25/18RKYII-25/20RKYII-30/25RKYII-31/20RKYII-35/25RKYII-34/30
Volume flow (m³/min)273018343025253031.33534
Working pressure  (Barg)121025912182025202530
Fuel tank volume(L)420420420480480480480760760840840
Maximum ambient temperature(℃)5050505050505050505050
Compression stage22222222222
Engine brandCUMMINSCUMMINSCUMMINSCUMMINSCUMMINSCUMMINSCUMMINSCUMMINSCUMMINSCUMMINSCUMMINS
Engine modelQSL8.9-C325QSL8.9-C325QSL8.9-C325QSL8.9-C360QSL8.9-C360QSL8.9-C360QSL8.9-C360QSZ13-C525SZ13-C475QSZ13-C575QSZ13-C575
Engine power(KW)242242242264264264264391354429429
Maximum engine speed(Rpm)21002100210021002100210021001900190019001900
Minimum engine speed(Rpm)15001500150015001500150015001400140014001400
Wheels Qty44444444444
Noise level(dB)88±388±388±388±388±388±388±388±388±388±388±3
Overall weight (kg)48005150531055005500561052305080508075207560
Dimensions(L*W*H)mm5400*2100*25505400*2100*25505400*2100*25505600*2100*25505600*2100*25505600*2100*25505650*2100*25505650*2100*25505650*2100*25505650*2100*25505650*2100*2550
Air outlet (inch) 5 pcs in total (2*G1-1/2, 2*G1-1/4, 1*G1)5 pcs in total (2*G1-1/2, 3*G1-1/4)5 pcs in total (2*G1-1/2, 3*G1-1/4)5 pcs in total (2*G1-1/2, 2*G1-1/4, 1*G1)
Remarks: The dimensions include the length of the trailer.