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707-E1-01830 Komatsu PC2000-8 Front Shovel Boom Cylinder Aftermarket Replacement
707-E1-01830 Komatsu PC2000-8 Front Shovel Boom Cylinder Aftermarket Replacement
Boom Cylinder for Komatsu PC2000-8 Mining Excavator (Front Shovel / Loading Shovel configuration).
- OEM Part Number: 707-E1-01830 / 707E101830
- Alternate Komatsu designation: 707-F1-01830 / 707F101830
- Demag / Komatsu Mining number: 92227040 / DM92227040
- Backhoe counterpart: 707-E1-00620 — not interchangeable
- Fitment: Direct drop-in replacement — no machine modification required
- Options: Standard specification, or cold climate spec to −40°C / −50°C
- Warranty: 12 months / 2,000 hours
Product Overview
SEIGO’s aftermarket boom cylinder, part number 707-E1-01830, is a direct drop-in replacement for the Komatsu PC2000-8 hydraulic mining excavator in front shovel (loading shovel) configuration. The same cylinder is catalogued by Komatsu under the alternate designation 707-F1-01830, and carries the Demag / Komatsu Mining part number 92227040 — a legacy number still used in the parts systems of many long-established open-pit operations, since the PC2000 front shovel platform descends from the Demag mining excavator line.
In front shovel configuration, the boom cylinders work under a fundamentally different load pattern than on a backhoe machine. A loading shovel crowds forward into the face at bench level rather than digging downward, so the boom cylinders carry a high, near-constant compressive load through the crowd stroke while the machine is simultaneously absorbing impact from the face. This combination — sustained load plus repeated shock — is why front shovel boom cylinders typically show rod chrome fatigue and gland seal extrusion before any other work equipment cylinder on the machine, and why rod straightness tolerance matters more here than anywhere else on the excavator.
SEIGO manufactures the 707-E1-01830 to full OEM dimensional specification, with a 42CrMo4 induction-hardened, hard chrome-plated piston rod and an ST52 seamless honed steel barrel. Genuine NOK (Japan) seals are fitted as standard. Every unit is pressure tested at 1.5× rated working pressure before shipment from our Guangdong factory, and is backed by a 12-month or 2,000 operating-hour warranty. HVOF rod coating is available as an upgrade for high-abrasion ore applications.
The PC2000-8 is supplied in either front shovel or backhoe configuration, and the boom cylinder part numbers differ between the two. Part 707-E1-01830 is the front shovel boom cylinder; the backhoe configuration uses 707-E1-00620. The two are not interchangeable. Confirm your machine configuration before ordering — the full cross-reference table is below.
Product Specifications
| Product category | Hydraulic Cylinder |
| Machine type | Mining Excavator |
| Machine brand* | Komatsu |
| Compatible model* | PC2000-8 |
| Excavator configuration | Front Shovel (F/S) — Loading Shovel |
| Cylinder type | Boom Cylinder |
| Cylinder action | Double-Acting |
| OEM part number* | 707-E1-01830 (707E101830) |
| Alternate Komatsu designation* | 707-F1-01830 (707F101830) |
| Demag / Komatsu Mining number* | 92227040 / DM92227040 |
| Related boom numbers* | 707-E1-01840, 707-H1-X1830 |
| Backhoe counterpart* | 707-E1-00620 — not interchangeable |
| SEIGO part number | SG707E101830 |
| Bore diameter | Confirmed against your machine serial number at quotation |
| Rod diameter | Confirmed against your machine serial number at quotation |
| Stroke / pin-to-pin length | Confirmed against your machine serial number at quotation |
| Rod material | 42CrMo4, induction hardened, hard chrome plated |
| Rod coating upgrade | HVOF tungsten carbide available for high-abrasion ore |
| Barrel material | ST52 seamless honed steel tube |
| Seal brand | NOK (Japan) |
| Design option | Standard specification, or cold climate specification (−40°C / −50°C) |
| Shipping weight | Confirmed at quotation — ISPM-15 fumigated wooden export crate |
| Manufactured in | Guangdong, China |
| Warranty | 12 months / 2,000 hours, whichever comes first |
| HS code | 841221 |
* OEM part numbers, brand names and model designations are used for identification and cross-reference purposes only. SEIGO Machinery is an independent aftermarket manufacturer and is not affiliated with Komatsu Ltd. or Komatsu Mining GmbH.
Komatsu PC2000-8 Front Shovel Cylinder Cross-Reference
| Komatsu P/N | Alternate Designation | Demag / Komatsu Mining P/N | Group |
|---|---|---|---|
| 707-E1-01830 | 707-F1-01830 / 707-E1-01840 / 707-H1-X1830 | 92227040 / DM92227040 | Front Shovel Boom Cylinder |
| 707-E1-01850 | — | 92228040 / DM92228040 | Front Shovel work equipment cylinder |
| 707-E1-01870 | 707-F1-01870 / 707-H1-X2630 / 707-H1-X2640 | 92229040 / DM92229040 | Front Shovel work equipment cylinder |
| 707-E1-01880 | — | 92384040 / DM92384040 | Front Shovel work equipment cylinder |
The PC2000 front shovel platform descends from the Demag mining excavator line, and many long-established open-pit operations still hold these cylinders in inventory under the eight-digit Demag / Komatsu Mining part number rather than the Komatsu number. Both numbering systems are listed above. Cylinder position within the front shovel work equipment group should be confirmed against your machine parts book and serial number before ordering.
Backhoe Configuration — Different Part Numbers
If your PC2000-8 is a backhoe machine rather than a front shovel, none of the numbers above apply. The backhoe work equipment cylinders are:
| Position | Cylinder P/N | Related Group No. | Seal Kit | Bore × Rod |
|---|---|---|---|---|
| Boom | 707-E1-00620 | 707-01-0K750 / 0K751 | 707-99-96140 | 300 × 200 mm |
| Boom (opposite side) | 707-E1-00630 | 707-01-0K750 / 0K751 | 707-99-96140 | 300 × 200 mm |
| Arm | 707-E1-00640 / 707-E1-00641 | 707-01-0K770 | 707-99-85350 | — |
| Bucket | 707-E1-00660 / 707-E1-00661 | 707-01-0K790 | 707-99-76260 | — |
Installing a backhoe boom cylinder on a front shovel machine (or the reverse) will cause boom geometry, reach and cycle-time problems. If you are not certain which configuration your machine is, send us the full machine serial number and we will confirm the correct cylinder before you order.
We stock a full range of cylinders for this model, including PC2000 backhoe boom cylinder and PC2000 Front Shovel Arm cylinder models.
FAQ
Q1: Will 707-E1-01830 fit my PC2000-8 Backhoe?
A: No. 707-E1-01830 is for the front-shovel configuration only. The backhoe configuration uses 707-E1-00620. Attempting to install the wrong boom cylinder will cause geometry, reach, and cycle-time problems.
Q2: What is the expected service life of 707-E1-01830 in continuous shovel operation?
A: Our 707-E1-01830 typically achieves 6,000-8,000 operating hours between scheduled seal rebuilds in continuous coal/ore shovel operation, and 10,000+ hours to rod replacement when HVOF coating is specified.
Q3: Do you ship 707-E1-01830 with the OEM Komatsu packaging style?
A: We ship in heavy-duty fumigated wooden export crates that meet ISPM-15 international shipping standards. Packaging is SEIGO-branded and includes both 707-E1-01830 and our internal SKU on all documentation.
Q4: What is Demag part number 92227040, and is it the same as 707-E1-01830?
A: Yes. The Komatsu PC2000 front shovel platform descends from the Demag mining excavator line, and Komatsu Mining GmbH retained the original eight-digit Demag numbering alongside the Komatsu system. 92227040 (also written DM92227040) and 707-E1-01830 refer to the same front shovel boom cylinder. Many long-established open-pit operations still hold this cylinder under the Demag number in their maintenance systems, so both numbers appear on our documentation and packaging. If your parts book shows only the eight-digit number, quote it to us and we will match it.
Q5: What is the difference between 707-E1-01830 and 707-F1-01830?
A: These are alternate Komatsu designations for the same front shovel boom cylinder, appearing in different revisions of the parts documentation. Related numbers 707-E1-01840 and 707-H1-X1830 are catalogued in the same group. If your machine documentation shows any of these numbers, send us the full machine serial number and we will confirm which specification applies to your unit before production.
Q6: Why do front shovel boom cylinders fail differently from backhoe boom cylinders?
A: A loading shovel crowds forward into the face at bench level rather than digging downward. The boom cylinders therefore carry a high, near-constant compressive load through the crowd stroke while the machine simultaneously absorbs impact from the face. This combination of sustained load plus repeated shock produces rod chrome fatigue and gland seal extrusion earlier than on a backhoe machine, where the load is more cyclical and the shock path runs primarily through the bucket and arm. In practice this means rod straightness tolerance and chrome adhesion are the determining quality factors on a front shovel boom cylinder, and it is why we offer HVOF rod coating as an upgrade for high-abrasion ore faces.
Q7: Can I buy the rod, barrel or seal kit separately instead of a complete cylinder?
A: Yes. SEIGO manufactures the piston rod, honed barrel, cylinder head, piston and seal kit as individual items and supplies them to hydraulic repair shops and rebuild facilities. For workshops with in-house honing and assembly capability, sub-component supply typically runs 40–60% of the cost of a complete replacement cylinder. Send us your machine serial number and the component you need for a quotation.
