| Technical Specifications & Performance Data |
|
|
|
| Parameter |
Specification |
Testing Standard |
|
| COGENG Part Number |
COGENG-707-99-84450-DMP |
Internal Quality Standard QS-529 |
|
| Replaces OEM Part No. |
Komatsu 707-99-84450, 7079984450 |
Direct OEM Replacement |
|
| Piston Seal Material |
Polyurethane (PU) Grade 97A |
ISO 6072 |
|
| Rod Seal Material |
Nitrile (NBR) with PTFE fill |
ISO 6072 |
|
| Wiper Material |
Polyurethane triple-lipped |
ISO 6194 |
|
| O-Ring Material |
Nitrile (NBR) 70 Durometer |
ISO 3601-1 |
|
| Wear Band Material |
PTFE-PEEK composite |
ISO 6811 |
|
| Backup Ring Material |
Nylon 6.6 reinforced |
ISO 1874-1 |
|
| Temperature Range |
-45°C to +130°C (-49°F to +266°F) |
ISO 2230 |
|
| Pressure Rating |
Up to 42 MPa (6090 PSI) |
ISO 10766-1 |
|
| Dump Cycle Speed |
4-6 seconds full cycle |
Manufacturer Specification |
|
| Fluid Compatibility |
Komatsu Super Hydraulic Fluid, all major synthetic oils |
ISO 6743-4 |
|
| Shelf Life |
5 years in original packaging |
ISO 2230 |
|
| Component Specifications Table |
|
|
|
| Component |
Material |
Size Specification |
Quantity |
| Main Piston Seal |
Polyurethane |
160mm ID x 12mm width |
1 |
| Rod Seal |
NBR with PTFE |
115mm ID x 10mm width |
1 |
| Buffer Seal |
Polyurethane |
160mm ID x 10mm width |
1 |
| Wiper Seal |
Polyurethane triple-lipped |
115.5mm ID |
1 |
| Wear Bands |
PTFE-PEEK composite |
160mm OD x 10mm width |
2 |
| O-Rings |
Nitrile (NBR) |
Various sizes AS568 |
10 |
| Backup Rings |
Reinforced nylon |
Various sizes |
6 |
| Guide Rings |
Composite fabric |
160mm OD x 10mm width |
2 |
| Gland Gasket |
NBR |
120mm OD x 4mm CS |
1 |
| Dust Seal |
Polyurethane |
115.3mm ID |
1 |
| Specialty Seals |
Various composites |
Model-specific |
2 |
|
|
|
|
| Compatible Komatsu Wheel Loader Models |
|
|
|
| Model Series |
Specific Models |
Year Range |
Bucket Capacity |
| Komatsu WA470 |
WA470-3, WA470-5 |
2005-2012 |
6.0-6.5 m² |
| Komatsu WA480 |
WA480-3, WA480-5 |
2006-2013 |
6.5-7.0 m² |
| Komatsu WA500 |
WA500-3, WA500-5 |
2007-2014 |
7.0-7.5 m² |
| Komatsu WA600 |
WA600-3, WA600-5 |
2008-2015 |
8.0-9.0 m² |
| Komatsu WA700 |
WA700-3, WA700-5 |
2009-2016 |
9.0-10.0 m² |
|
|
|
|
| Dump Cylinder Specifications |
|
|
|
| Parameter |
Specification |
Tolerance |
Performance Metric |
| Cylinder Bore |
160 mm |
+0.18/-0.00 mm |
Dump cylinder |
| Piston Rod Diameter |
115 mm |
+0.00/-0.10 mm |
Chrome-plated rod |
| Stroke Length |
1,050 mm |
±5 mm |
Tilt range |
| Rod Finish |
Hard chrome plated |
Ra 0.2-0.4 μm |
Surface roughness |
| Operating Pressure |
37.3 MPa (380 kg/cm²) |
±2% |
System design pressure |
| Dump Force |
22,000 kgf |
±5% |
Maximum tilt force |
| Dump Angle |
48° standard |
±0.5° |
Maximum dump angle |
| Cycle Time |
5 seconds average |
±8% |
Full dump/return cycle |
| Bucket Weight |
3,500-4,500 kg |
±5% |
Supported bucket mass |
Decompose pictures
Parts list
| NO |
Number |
Name |
Qty |
| K |
707-99-84450 |
SERVICE KIT,DUMP CYLINDER |
1 |
|
707-01-03232 |
CYLINDER ASS'Y |
1 |
|
707-01-03231 |
CYLINDER ASS'Y |
1 |
| 1 |
707-13-28082 |
• CYLINDER |
1 |
|
707-13-28081 |
• CYLINDER |
1 |
| 2 |
426-70-11890 |
• BUSHING |
1 |
| 3 |
707-27-28160 |
• HEAD,CYLINDER |
1 |
| 4 |
707-52-91150 |
• BUSHING |
1 |
| 5 |
707-51-14640 |
• RING,BUFFER (KIT) |
1 |
| 6 |
707-51-14080 |
• PACKING,ROD (KIT) |
1 |
| 7 |
198-63-93170 |
• SEAL,DUST (KIT) |
1 |
| 8 |
07179-14160 |
• RING,SNAP |
1 |
| 9 |
07000-15275 |
• O-RING (KIT) |
1 |
| 10 |
178-63-22460 |
• RING,BACK-UP (KIT) |
1 |
| 11 |
01011-82710 |
• BOLT |
10 |
| 12 |
01011-82730 |
• BOLT |
2 |
| 13 |
01643-32780 |
• WASHER |
12 |
| 14 |
707-58-14041 |
• ROD,PISTON |
1 |
| 15 |
426-70-11890 |
• BUSHING |
1 |
| 16 |
07000-12115 |
• O-RING (KIT) |
1 |
| 17 |
707-35-52860 |
• RING,BACK-UP (KIT) |
2 |
| 18 |
707-36-28020 |
• PISTON |
1 |
| 19 |
707-44-28180 |
• RING,PISTON (KIT) |
1 |
| 20 |
707-39-28820 |
• RING,WEAR (KIT) |
1 |
| 21 |
707-40-22271 |
• SPACER |
2 |
| 22 |
01010-61455 |
• BOLT |
6 |
| 23 |
707-88-01850 |
• PLATE |
1 |
| 24 |
01010-81030 |
• BOLT |
2 |
| 25 |
01643-31032 |
• WASHER |
2 |
|
|
SERVICE KIT |
|
Quality Assurance & Warranty
Warranty Period: 18 months or 3,000 operating hours
Quality Certifications: ISO 9001:2015 Quality Management System
Performance Testing: 100% functional testing under simulated load
Angle Accuracy Verification: Precision measurement verification
Material Certifications: Available upon request
Technical Support: Specialized wheel loader expertise
Documentation: Complete installation and calibration guide
Frequently Asked QuestionsA. When will get the items after I place order?
Q. Once your payment is confirmed,we will arrange the goods within 1~4 days; if not in stock, we will inform you before placing the order?
A. If I only know the excavator model, but can not offer parts No.,what should I do ?
Q. If possible, you can send us pictures of old products, nameplate or the size for reference.
A. How can you guarantee the quality??
Q. We will 100% test the goods before delivery. We also support video inspection.
A. How long will it take to delivery to my address??
Q. The normal delivery time is 3-7 days, depending on which country you are in.?
A : Which delivery method will you choose?
Q : By sea, air or express(DHL,Fedex,TNT, UPS, EMS etc.)，Sometimes we will arrange as the customer's demand.
A: What's package? Can you give me the package according my requirement??
Q. We usually packed by standard exported box or carton. And yes we can pack as per your requirement.
A: Can the price be cheaper?
Q: Of course, you will be offered a good discount for a big amount.
A: Why should I choose to buy from you?
Q:Our advantages: 100% quality assurance, develop and manufature follow original ones;Quick response within 24 hours; Small order allowed;Reasonable stock and timely delivery;Neutral packing, customized packing are allowed. Positive customer feedback from abroad market;Excellent after-sales service.
A : Which payment terms can you accept?
Q : Paypal. Western Union, Bank Transfer, T/T...
