SANY STC250 Spare Parts
Quote after compatibility confirmation by machine model, engine model and part number.
Sourcing Parts for SANY STC250
The pages below cover common wear and maintenance parts for SANY STC250. Every quote is confirmed against the machine nameplate, engine model and OEM part number to avoid mismatched shipments.
To get a quote, send the STC250 nameplate photo, OEM part numbers, quantity and destination port.
Hydraulic parts
SANY Hydraulic Cylinder Seal Kit
Seal kit matching for SANY boom, arm, bucket and outrigger cylinders. Seal kits are identified by the cylinder, not by the machine: bore diameter, rod diameter and the seal groove arrangement decide the kit, and a single excavator carries boom, arm and bucket cylinders in three different sizes, while a truck crane adds outrigger and telescoping cylinders again different. This listing spans a 21.9 t excavator, a 35 to 38.1 t excavator and a 25 t class truck crane, which have nothing in common at cylinder level. Measure the rod diameter and the bore and send those with the machine serial number. Two things worth knowing: a cylinder that has been resealed twice and still leaks usually has a scored rod or a worn gland bore, and no seal kit will fix that; and it is better to buy the kit for the cylinder you are opening than a set for the machine, because a cylinder that is not leaking is best left closed.
Crane and lifting parts
SANY Crane Outrigger Cylinder Parts
Cylinder components and seals for SANY truck crane outrigger systems. Outriggers are a structural safety system and the parts scale with the crane: the STC250 sits at 32.1 to 33.1 t operating weight on a 6.4 by 5.35 m outrigger span with 7 t of counterweight, while the STC500 hybrid builds carry 8.5 to 11 t of counterweight on spans up to 8.0 by 6.42 m. Nothing interchanges across the range, and the suffix matters even within one model — the STC250C5-1 and the STC250C5-8 already differ from each other in outrigger span. Outrigger cylinders carry load-holding valves and those must be replaced like for like: substituting a valve with a different cracking pressure on a load-bearing circuit is not a saving worth making. Send both the chassis nameplate and the superstructure serial number, since crane parts are documented in two separate books.
Crane and lifting parts
SANY Crane Boom Wear Pads and Telescoping Seals
Boom section wear pads, telescopic cylinder seal kits and boom pin bushings for SANY STC-series truck cranes. Wear pads are the part the telescoping duty cycle consumes: the STC250C5-1 extends its full boom in 80 s and retracts in 105 s, the C5-8 build does the same in 70 / 90 s, and every one of those cycles slides the sections over the pads. Pads are identified by boom section and position — top, bottom and side pads on the same section are different parts, and the pad set for section 2 does not fit section 3. Count the sections on your boom and tell us which one is showing metal-to-metal contact, or send a photograph of the wear marks on the section skin. Telescopic cylinder seals are quoted by the cylinder stamping, since the STC250, STC500 and STC800 each carry a different cylinder. If the boom drifts back under load, the problem is more often the holding valve on the cylinder than the seals; we quote the valve separately against the superstructure serial number.
Crane and lifting parts
SANY Crane Winch Brake and Hoist Parts
Main and auxiliary hoist parts for SANY STC-series truck cranes: winch brakes, brake discs and springs, hoist motors, planetary reducers and the counterbalance valve on the hoist circuit. Hoist speed sets the size class of everything on the drum — the STC250 lifts at 125 m/min on the C5-1 and 130 m/min on the C5-8, the STC500 at 135 m/min, and the STC800 is a size class above both, so nothing on the winch crosses between the three. Main and auxiliary hoists on the same crane are separate assemblies with separate part numbers; say which one on the enquiry. If the complaint is a load that creeps down with the control in neutral, the brake and the counterbalance valve account for most cases and cost a fraction of a motor, so we ask for the symptom before quoting the motor. Winch parts are documented in the superstructure book, not the chassis book — send the superstructure serial number, and the cylinder count on the brake if you are ordering brake parts.
Crane and lifting parts
SANY Crane Hoist Wire Rope
Main and auxiliary hoist wire rope for SANY STC-series truck cranes, specified from SANY's own product brochures rather than by tonnage. The export STC250 runs 16 mm rope (16-35W×7-1960) — 175 m on the main winch and 105 m on the auxiliary. The STC500 runs 18 mm (18-35W×7-1960), 220 m and 130 m. The STC800 and the later STC800S both run 20 mm (20-35W×7-1960), 245 m and 145 m. 35W×7 is a rotation-resistant construction and 1960 is the wire tensile grade in MPa: a rope of the same diameter but a different construction can let the hook block spin under load, so diameter alone is not a specification. The letters after the grade on the brochure designation (USS, USZ) code the finish and lay direction and are worth matching to the tag on the old reel. These figures come from export brochures; domestic C5-series builds are not covered by them, so confirm on the machine before ordering. Replace against the discard criteria in the operator manual — broken wires, diameter loss, kinks, birdcaging — not against hours, and check the drum and sheave grooves at the same time: a worn groove shortens the life of a new rope.
Crane and lifting parts
SANY Crane Slewing Bearing and Slew Reducer
Slewing bearing, slew reducer and slew motor parts for SANY STC-series truck cranes. The bearing is sized to load moment, not to the tonnage badge. On SANY's published figures the export STC250 carries 962 kN·m on the base boom, the STC500 1,774 kN·m and the STC800 2,560 kN·m, so raceway diameter, ball size and bolt pattern are a size class apart across the three; the later STC800S is rated at 2,822 to 2,958 kN·m depending on counterweight and is a different build again. The STC250 brochure specifies a single-row ball slewing ring. Maximum slewing speed is 2.0 r/min on the STC500 and STC800 and 2.0 to 2.2 r/min across STC250 brochure editions, while domestic C5 builds of the STC250 list 2.6 to 2.8 r/min — the reducer and motor are matched to that speed. A slewing bearing is a structural safety part and we quote it only against the superstructure serial number. Before ordering one for a crane that slews roughly, measure the tilt clearance with the boom loaded and unloaded and compare it with the wear limit in the manual: jerky starts and stops are more often the slew brake, the slewing buffer valve or the reducer than the bearing.
SANY STC250 Specifications and Selection Notes
| Builds covered | STC250C5-1 and STC250C5-8 |
|---|---|
| Operating weight | 32,100 kg (C5-1) / 33,100 kg (C5-8) |
| Rated power | 221 kW at 2300 rpm (C5-1) / 230 kW at 2200 rpm (C5-8) |
| Counterweight | 7 t |
| Overall dimensions | 13,020 × 2,550 × 3,500 mm (C5-1) / 13,270 × 2,550 × 3,500 mm (C5-8) |
| Outrigger span | 6.4 × 5.35 m (C5-1) / 6.4 × 5.5 m (C5-8) |
| Main winch line speed | 125 m/min (C5-1) / 130 m/min (C5-8) |
| Boom extend / retract time | 80 / 105 s (C5-1) · 70 / 90 s (C5-8) |
| Slewing speed | 2.6 rpm (C5-1) / 2.8 rpm (C5-8) |
How STC250 Differs From the Rest of the Range
- The C5-8 is a measurable step up from the C5-1, not just a badge change: 9 kW more power at a lower rated speed, a full second off the boom extend cycle (70 s against 80 s), a faster winch and a wider outrigger span. Hydraulic pump, valve and winch parts are the ones most likely to differ between the two — quote by the full suffix.
- Rated lifting capacity, load moment and maximum lift height are deliberately not listed: no source publishes them for this model. The figure shown as "maximum capacity" on Chinese equipment listings is a category band, not a rated value, and load-bearing parts must never be selected from a guessed rating.
- Truck crane part numbers are split between chassis and superstructure, which are documented in separate parts books — send both the chassis nameplate and the superstructure serial number when requesting a quote.
Compiled from a Chinese used-equipment specification database. The engine model is not recorded for truck cranes in that source, so it is omitted rather than guessed. Published figures for the C5-8 Pro and the C5-8 plug-in build are identical, which is unlikely to be correct — confirm the exact build against the machine nameplate before ordering.
Commonly Replaced Parts on SANY STC250
For SANY STC250 truck cranes on lifting and oilfield projects, these are the part groups most often requested. Quotes are confirmed against the crane nameplate and OEM part numbers.
- Outrigger cylinder parts and seal kits
- Winch motor, winch reducer and wire rope parts
- Slewing bearing and slewing reducer parts
- Load moment indicator (LMI) sensors and safety system parts
- Boom telescoping cylinder seals and wear pads
- Hydraulic pumps, balance valves and control valve parts
- Hydraulic hose kits by length, fitting type and pressure rating
- Filter kits and chassis maintenance parts
This list covers typical wear items for this machine category. Availability for a specific part is always confirmed against the OEM part number.
STC250 Sourcing FAQ
Do you supply spare parts for SANY STC250?
Yes. Quote-ready STC250 parts currently include SANY Hydraulic Cylinder Seal Kit, SANY Crane Outrigger Cylinder Parts, SANY Crane Boom Wear Pads and Telescoping Seals and more. Other parts can be confirmed with an OEM part number.
How do I confirm part compatibility for STC250?
Send the STC250 nameplate photo, engine model and OEM part number. We confirm compatibility before quoting to avoid mismatched shipments.
How are STC250 parts shipped?
Parts ship with export packing by sea or air depending on weight, volume and lead time, with destination port costs confirmed in the quote.
What are the most commonly replaced parts on SANY STC250?
Frequent replacements on this truck crane include outrigger cylinder parts and seal kits, winch motor, winch reducer and wire rope parts, slewing bearing and slewing reducer parts, load moment indicator (lmi) sensors and safety system parts, boom telescoping cylinder seals and wear pads and more, always confirmed against the OEM part number.