Algeria 
Belgium 
France 
Luxembourg 
Poland 
Open Bowl Scrapers Caterpillar 621K
Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.
Utilaj nou, second-hand sau de inchiriat, dumneavoastra alegeti!
EFFICIENCY THROUGH TECHNOLOGY
- Machine Speed Limit is designed to take the place of top gear selection. If the machine top speed needs to be limited the operator can select the top speed through the display or the top speed can be set in ET. This will allow the machine to find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases resulting in a lower engine load factor and lower fuel burn verses using top gear selection that required the machine to run at engine speeds at or close high idle.
- Ground Speed Control sets the desired top speed by the operator if job site conditions or segment speed limits require a speed less than full run out. Machine Speed Limit is intended for use when top speed needs to be limited for longer durations and Ground Speed Control is intended for use when the top speed needs to be reduced for shorter segments or intermediate periods of time. The operator can set the desired top speed and the machine will find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases will result in a lower engine load factor and lower fuel burn verses top gear selection.
SAVE ON MAINTENANCE TIME
- In cold weather conditions the machine will use the Auto Stall feature to help warm up the transmission oil faster resulting in the machine shifting out of torque converter drive (2nd gear) faster than on previous models.
- The filter bank located at the rear of the engine compartment has undergone improvements for serviceability by raising the filter bank up for easier access.
BUILT-IN SAFETY FEATURES
- Differential Lock Engagement Protection feature allows the machine to prevent the operator from engaging the differential lock when damage could occur.
- The open bowls now come standard with bowl side overflow guards to help prevent material from flowing over the bowl sides and falling onto the draft arms where material becomes lodged between the bowl side and draft arm resulting in decreased work cycle times.
- Engine Over Speed Protection - In the event of an engine over speed situation, the compression brake or brakes will automatically engage with no operator input. The machine determines the over speed condition based on rate of acceleration and applies compression brakes automatically.
OPERATOR COMFORT AND CONTROL
- The interior of the K Series cabs has improved the operator comfort and visibility by redesigning the dash area and key pad placement.
- Advanced Cushion Hitch prevents end stroke by having the ability to predict end stroke events and manage the rate of dampening. The desired result is improved hitch repair, reduced maintenance and improved operator ride in rough conditions.
- 621K Series steering system design requires significantly less steering effort. The reduced steering effort will allow for decreased operator fatigue and a more efficient operator resulting in possible higher rates of production late in the work cycle.
Specificatii tehnice
SPECIFICATII TEHNICE
| General | |
|---|---|
| Maximum Depth of Cut | 315 mm |
| Maximum Depth of Spread | 540 mm |
| 180° Curb-to-Curb Turning Width | 11.8 m |
| Scraper Capacity - Struck | 13 m³ |
| Tires - Scraper | 33.25R29**E3 |
| Overall Width | 3.57 m |
| Overall Shipping Height | 4.03 m |
| Width - Cut | 3.14 m |
| Tires - Tractor Drive | 33.25R29**E3 |
| Top Speed - Loaded | 53.9 km/h |
| Fuel Tank Refill Capacity - Scraper | 763 l |
| Scraper Capacity - Heaped | 18.4 m³ |
| Rated Load | 26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons) |
| Engine | |
| Rated Engine RPM - Tractor | 2000 r/min |
| Engine Model - Tractor | Cat C13 |
| Flywheel Power - Tractor | 304 kW |
| Note | Cat C13 engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards. |
| Tractor Engine | |
| Flywheel Power - Tractor/Scraper | 304 kW (407 hp) |
| Scraper Bowl | |
| Scraper Capacity - Heaped | 18.4 m³ |
| Transmission | |
| Top Speed - Loaded | 53.9 km/h |
| Service Refill Capacities | |
| Hydraulic System | 83 l |
| Cooling System | 45 l |
| Fuel Tank | 818 l |
| Crankcase | 30.58 l |
| Diesel Exhaust Fluid | 30.5 l |
| Transmission System | 93 l |
| Dimensions | |
| Width - Overall Machine | 3585 mm |
| Width - Tractor | 3381 mm |
| Width - Inside of Bowl | 3048 mm |
| Width - Outside Rear Tires | 3275 mm |
| Height - Overall Shipping | 4029 mm |
| Height - Top of Cab | 3612 mm |
| Ground Clearance - Tractor | 557 mm |
| Front of Tractor to Front Axle | 3119 mm |
| Axle to Vertical Hitch Pin | 540 mm |
| Height - Scraper Blade Maximum | 520 mm |
| Wheel Base | 7998 mm |
| Rear Axle - Rear of Machine | 2898 mm |
| Length - Maximum (Push-Pull) | 15576 mm |
| Length - Overall Machine - Standard | 14015 mm |
| Width - Rear Tire Centers | 2290 mm |
| Width - Overall Machine - Ladder Down | 3790 mm |
| Non Push-Pull | |
| Overall Length | 14.02 m |
| Operating Weight - Empty | 36185 kg |
| Push-Pull | |
| Operating Weight - Empty | 36567 kg |
| Overall Length - With Bail Down | 15.58 m |
| Cab | |
| ROPS/FOPS | Meets SAE and ISO standards |
| Exterior Sound Level | The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A). |
| Safety Criteria Compliance Standards | |
| Brakes | ISO 3450:1996 |
| Seat Belt | SAE J386:JUN1985 |
| Steering System | ISO 5010:2007 |
| Reverse Alarm | ISO 9533:2010 |
| Rollover Protection Structure (ROPS) | ISO 3471:2008 for up to 17 084 kg (37,664 lb) |
| Falling Object Protective Structure (FOPS) | ISO 3449:2005 Level II |
| Travel Speeds - Runout | |
| Transmission Gear - Sixth | 29.6 km/h |
| Transmission Gear - Fifth | 21.9 km/h |
| Transmission Gear - Reverse | 9.2 km/h |
| Transmission Gear - Second | 8.9 km/h |
| Transmission Gear - Third | 12.1 km/h |
| Transmission Gear - First | 5 km/h |
| Transmission Gear - Eighth | 53.9 km/h |
| Transmission Gear - Fourth | 16.3 km/h |
| Transmission Gear - Seventh | 39.9 km/h |
| Implement Cycle Times | |
| Bail Lower | 3.2 s |
| Bail Raise | 1.8 s |
| Apron Lower | 3.8 s |
| Apron Raise | 2.95 s |
| Ejector Extend | 5.2 s |
| Ejector Retract | 6.7 s |
| Bowl Raise | 3 s |
| Bowl Lower | 3.5 s |
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