EK250
SAVANNAH • GEORGIA • USA
THE COMPANY
• CZM has over 40 years of foundation equipment manufacturing
experience with a wide range of models for multiple applications:
drilled shafts, CFA, driven piles with hydraulic hammers, secant piles,
micro piles, and anchoring, among others.
• CZM Foundation Equipment’s USA manufacturing facility is located
in Savannah, Georgia.
• CZM Foundation Equipment has designed their models with the after
sales being priority. Quality and service are the main ingredients to a
quality machine, this is one of the direct reasons CZM uses Caterpillar
as a base, the Caterpillar bases are not only operator and maintenance
friendly but by using Caterpillar it enables the customer access to the
large and already nationally established Caterpillar Network.
• CZM is the world’s largest manufacturer of CFA drilling rigs,
featuring the revolutionary torque mechanism “Bottom Drive CFA”, an
internationally recognized CZM patent.
02 | CZM FOUNDATION EQUIPMENT
EK250
Mounted on
CAT336HHP TIER IV.
’’
02 | CZM FOUNDATION EQUIPMENT
APPLICATION
The EK250SM from CZM has been designed for high performance
and versatility. It is a reliable drilling rig mounted on a CAT336HHP
TIER IV base, keeping the operation and maintenance extremely
friendly and efficient.
main components. The big inner passage is a main feature of the
unique CZM’s patented mechanism “Bottom Drive CFA” which allows
this drilling rig the versatility of fast, easy and economic conversion for
different applications such as drilled shafts, CFA and displacement pile.
The robust design of the EK250SM rotary , is due to the largest inner
passage diameter of its class. This allows this model to deliver higher
drilling torque, the use of stronger Kelly bars and longer life time of
The combination of hydraulic extended crawlers, centralized
parallelogram and the mast made of a light weight / high yield
strength “weldox” steel enable this model the safest stability.
BOTTOM DRIVE CFA
Torque transmission
mechanism
Auger
Notches
Keyways
Rotary
head
EK250 EK250
EK250
EK250
EK250
EK250
DISPLACEMENT PILE
DRILL SHAFT PILE
CONTINUOUS FLIGHT
AUGER PILE
SHORT MAST VERSION
Depth (max.): 88 ft / 27 m
Diameter (max.): 24 in / 600 mm
Depth (max.): 246 ft / 75 m
Diameter (max.): 156 in / 4,000 mm
Depth (max.): 88 ft / 27 m
Diameter (max.): 32 in / 800 mm
Depth (max.): 80 ft / 25 m
Diameter (max.): 156 in / 4,000 mm
04 | CZM FOUNDATION EQUIPMENT
EK250
TECHNICAL SPECIFICATIONS
KELLY BAR STANDARD MAST APPLICATION
159 ft
246 ft
156 in
48 m
75 m
4,000 mm
72 ft
80 ft
156 in
22 m
25 m
4,000 mm
234,500 lbf.ft
8-23 rpm
40-98 rpm
31,800 kgf.m
8-23 rpm
40-98 rpm
73,326 lbf
81,814 lbf
19 ft 8 in
33,000 kgf
37,000 kgf
6,000 mm
58,700 lbf
54,200 lbf
175 ft/min
245 ft/min
1.1/8 in
22.5/16 in
26,500 kgf
24,000 kgf
54 m/min
75 m/min
28 mm
566 mm
22,000 lbf
3/4 in
16.5 in
10,000 kgf
19 mm
420 mm
15º
5º
7.5º / 7.5º
15º
5º
7.5º / 7.5º
Max. Drilling Depth (standard version - interlocking kelly bar)
Max. Drilling Depth (friction kelly bar)
Max. Drilling Diameter
KELLY BAR SHORT MAST APPLICATION
Max. Drilling Depth (interlocking kelly bar)
Max. Drilling Depth (friction kelly bar)
Max. Drilling Diameter
ROTARY HEAD
Max. torque (nominal)
Working speed
Spin off speed
CROWD SYSTEM
Cylinder Pull-down force (nominal)
Cylinder Pull-up force (nominal)
Cylinder stroke
MAIN WINCH
Max. pull-force effective (1st layer)
Max. pull-force effective (1st layer - 2nd speed)
Line speed (1st layer)
Max. line speed (2nd speed)
Cable diameter
Drum diameter (1st layer)
AUXILIARY WINCH
Max. pull-force effective (1st layer)
Cable diameter
Drum diameter (1st layer)
MAST INCLINATION
Backward
Forward
Sideways
DIESEL ENGINE CAT336HHP TIER IV (CAT® C9.3 ACERT™)*
Exhaust Emission Standard
Gross Power – SAE JI995
Displacement
Fuel tank
HYDRAULIC SYSTEM
Main circuit pressure (max.)
Main circuit Flow rate (max.)
Hydraulic oil tank (CAT + additional)
AUXILIARY HYDRAULIC SYSTEM
Pump Displacement
Auxiliary circuit flow rate (max.)
UNDERCARRIAGE
Track length
Length to center of rollers
Transport position width (retracted)
Operation position width (extended)
Track shoes width
Max. drawbar pull
Max. travel speed
TRANSPORT
Overall Height (Standard Mast)
Overall Height (Short Mast)
Transport Length (Standard Mast)
Transport Length (Short Mast)
Transport Width (Standard Mast / Short Mast)
Max. transport Weight (Standard Mast)
Min. transport Weight (Standard Mast)
Transport Weight (Short Mast)
GENERAL DATA
Overall height (Working position; Standard mast)
Overall height (Working position; Short mast)
Operation weight (Standard mast)
Operation weight (Short mast)
EPA Tier 4 (Interim)
323 hp
568 in³
164 gal
EPA Tier 4 (Interim)
241 kW
9.3 L
620 L
5,076 psi
127 gal/min
67.4 gal
350 bar
480 L/min
255 L
3.66 in³
29 gal/min
60 cc3
108 L/min
19 ft 3 in
16 ft 5 in
9 ft 10 in
14 ft 1 in
31.1/2 in
51,930 lbf
3.1 mph
5,880 mm
5,000 mm
3,000 mm
4,300 mm
800 mm
23,100 kgf
5 km/h
10 ft 10 in
11 ft 9 in
64 ft 6 in
44 ft 2 in
9 ft 10 in
163,300 lb
110,000 lb
102,300 lb
3,295 mm
3,570 mm
19,670 mm
13,470 mm
3,000 mm
74,000 kg
50,000 kg
46,500 kg
83 ft 2 in
31 ft 4 in
180,800 lb
161,900 lb
25,360 mm
9,560 mm
82,000 kg
73,500 kg
Specifications are subject to change without notice.
CZM FOUNDATION EQUIPMENT
| 05
50 in / 1,270 mm
EK200
16 ft 5 in / 5,000 mm
19 ft 3 in / 5,880 mm
11 ft 8 in / 3,530 mm
06 | CZM FOUNDATION EQUIPMENT
19 ft 8 in / 6,000 mm - STROKE
17 ft 7 in / 5,350 mm
67 in / 1,700 mm
83 ft 2 in / 25,360 mm
47 ft 8 in / 14,535 mm
7 ft 2 in / 2,190 mm
GENERAL DIMENSIONS
11 ft 2 in - 14 ft 9 in
3,400 - 4,500 mm
31 1/2 in / 800 mm
9 ft 10 in - 14 ft 1 in
3,000 - 4,300 mm
10 ft 10 in / 3,295 mm
TRANSPORT POSITION
EK250
16 ft 5 in / 5,000 mm
18 ft 18 in / 5,690 mm
19 ft 3 in / 5,880 mm
26 ft 7 in / 8,100 mm
64 ft 6 in / 19,670 mm
10 ft 10 in / 3,295 mm
Weight: 163,300 lb / 74,100 kg
EK250
18 ft 8 in / 5,690 mm
19 ft 3 in / 5,880 mm
18 ft 1 in / 5,520 mm
56 in / 17,090 mm
20 in / 500 mm
Weight: 13,000 lb
5,900 kg
Weight: 19,000 lb
8,600 kg
93 in / 2,355 mm
29 in / 730 mm
2 ft / 610 mm
50 in / 1,260 mm
43 in / 1,100 mm
Weight: 110,000 lb / 49,900 kg (removing Rotary, Lower Mast and Counterweights)
85 in / 2,140 mm
83 in / 2,100 mm
Weight: 3,700 lb
1,700 kg
Weight: 17,600 lb
8,000 kg
CZM FOUNDATION EQUIPMENT
| 07
5 ft 10 in
1,770 mm
27 ft 5 in / 8,355 mm
31 ft 4 in / 9,560 mm
GENERAL DIMENSIONS SHORT MAST
16 ft 5 in / 5,000 mm
19 ft 3 in / 5,863 mm
10 ft 6 in / 3,200 mm
19 ft 3 in / 5,000 mm
19 ft 3 in / 5,863 mm
36 in
900 mm
11 ft 9 in / 3,570 mm
TRANSPORT POSITION SHORT MAST
16 ft 5 in / 5,000 mm
19 ft 3 in / 5,863 mm
3 ft 11 in
1,205 mm
20 ft 4 in / 6,200 mm
43 ft 6 in / 13,268 mm
Weight: 134,300 lb / 61,000 kg
11 ft 9 in / 3,570 mm
93 in / 2,355 mm
4ft 7in / 1.397mm
5ft / 1.525mm
2ft / 614mm 2ft / 610 mm 83 in / 2,100 mm
7,800
7,800
- 3,500
7,800
- 3,500
lb - kg
3,500
kg
kg
500
6,500
kgkg14,400 lb - 6,500
kg lb lb
10,200
10,200
10,200
lb - 4,600
lbkg
lb
- 4,600
- 4,600
kgkg
7,800 lb - 3,500 kg
400 lb - 6,500 kg
10,200 lb - 4,600 kg
Weight: 19,000 lb
8,600 kg
Optional
Weight: 13,000 lb
5,900 kg
08 | CZM FOUNDATION EQUIPMENT
Weight: 10,200 lb
4,600 kg
11 ft 10 in
3,600 mm
16 ft 5 in / 5,000 mm
19 ft 3 in / 5,863 mm
Weight: 102,300 lb / 46,500 kg
20 ft 4 in / 6,200 mm
42 ft 3 in / 12,868 mm
KELLY BAR
CASED DRILLED SHAFT PILES
KCL
Reference only. Depth and diameter will depend on the soil condition.
CASING DIAMETER
84 in / 2,130 mm
80 in / 2,000 mm
70 in / 1,800 mm
60 in / 1,500 mm
50 in / 1,300 mm
MAXIMUM DEPTH
64 ft / 19 m
68 ft / 21 m
77 ft / 23 m
90 ft / 27 m
108 ft / 33 m
• Maximum length of each casing element 18 ft (5,500 mm)
• It can be optionally equipped with a casing oscillator, powered by the
drilling rig, for greater diameters and depth of casing.
EK250
HGT
90 mm 100 mm
480 mm
EK250
Ø 62 mm (x2)
200EK250x 200 mm
DPT
KOP
EK250
KELLY BAR CHOICES FOR STANDARD MAST
NUMBER OF
ELEMENTS
Standard 4/160 (48) Interlock
Short 4/127 (38) Interlock
Long 4/199 (60) Interlock
Short 5/159 (48) Friction
Long 5/246 (75) Friction
4
4
4
5
5
DEPTH - DPT
160’ / 48,650
127’ / 38,650
199’ / 60,650
159’7” / 48,650
246’ / 75,000
TRANSPORT - KCL
(ft in/mm)
47’8” / 14,535
39’4” / 11,985
57’6” / 17,535
39’4” / 11,985
59’11” / 18,255
HGT (ft in/mm)
18’7” / 5,670
18’7” / 5,670
10’ / 3,048
18’7” / 5,670
7’8” / 2,330
KOP (ft in/mm)
167’10” / 51,150
135’ / 41,150
207’1” / 63,150
167’10” / 51,150
254’3” / 77,500
WEIGHT (lb/kg)
17,500 / 8,000
15,400 / 7,000
20,700 / 9,400
16,600 / 7,500
24,500 / 11,000
KELLY BAR CHOICES FOR SHORT MAST
NUMBER OF
ELEMENTS
Standard 5/55 Interlock
7/80 Friction
5
7
DEPTH - DPT
55’ / 16,800
80’ / 25,000
TRANSPORT - KCL
15’ 2” / 4,600
15’ 2” / 4,600
HGT (ft in/mm) KOP (ft in/mm)
3’ 2” / 980
75’ 5’’ / 23,000
3’ 2” / 980
84’ / 26,000
WEIGHT (lb/kg)
13,000 / 5,860
14,500 / 6,500
CZM FOUNDATION EQUIPMENT
2,000 mm / 80 in
The standard kelly has 4 interlocking elements and reaches 160 ft (48 m) depth.
| 09
93 in / 2.355 mm
50 1/2 in / 1,280 mm
ROTARY
31 1/2 in / Ø 800 mm
83 in / 2,100 mm
TORQUE DIAGRAM
246,500
232,000
217,500
203,000
188,500
174,000
159,500
145,000
130,500
116,000
101,500
87,000
72,500
58,000
43,500
29,000
14,500
0
1st Gear
2nd Gear
3rd Gear
0
5
10
15
20
25
TORQUE (lbf.ft)
TORQUE (kgf.m)
TORQUE X WORKING SPEED (NOMINAL)
34,000
32,000
30,000
28,000
26,000
24,000
22,000
20,000
18,000
16,000
14,000
12,000
10,000
8,000
6,000
4,000
2,000
0
30
ROTATION (rpm)
4th Gear
5th Gear
6th Gear
0
20
40
60
80
ROTATION (rpm)
10 | CZM FOUNDATION EQUIPMENT
100
120
50,400
46,800
43,200
39,600
36,000
32,400
28,800
25,200
21,600
18,000
14,400
10,800
7,200
3,600
0
140
TORQUE (lbf.ft)
TORQUE (kgf.m)
TORQUE X SPIN-OFF SPEED (NOMINAL)
7,000
6,500
6,000
5,500
5,000
4,500
4,000
3,500
3,000
2,500
2,000
1,500
1,000
500
0
The mast is made of special steel called “Weldox” that has
a yield strength 2,8 times higher than regular ASTM A36
steel. It means that with less weight the EK250SM can have
better stability and displacements on the job site and easier
transport handlings
CZM FOUNDATION EQUIPMENT
| 11
USA
SAVANNAH
WWW.CZM-US.COM
145 East Industrial Boulevard
Pembroke • Georgia • 31321
United States • Phone: (912) 200-7654
Specifications are subject to change without notice.