Zoomlion QY25V Spare Parts
Quote after compatibility confirmation by machine model, engine model and part number.
Sourcing Parts for Zoomlion QY25V
The pages below cover common wear and maintenance parts for Zoomlion QY25V. Every quote is confirmed against the machine nameplate, engine model and OEM part number to avoid mismatched shipments.
To get a quote, send the QY25V nameplate photo, OEM part numbers, quantity and destination port.
Crane and lifting parts
Zoomlion Crane Winch Motor
Winch motor and hydraulic drive parts for Zoomlion truck crane maintenance. Winch capacity scales with the crane: the ZTC250V is a 25 t machine and the ZTC550V a 55 t machine at more than twice the base boom moment, so the main hoist motor, its brake and the reduction gearbox are a size class apart between them. The main hoist and the auxiliary hoist on the same crane are also different assemblies, which is worth stating on the enquiry rather than leaving us to ask. Crane part numbers are split between the chassis book and the superstructure book, so anything on the winch is quoted against the superstructure serial number. If the complaint is a hoist that creeps under load, look at the brake and the counterbalance valve before the motor — those are much cheaper parts and they account for most creep faults.
Hydraulic parts
Zoomlion Crane Hydraulic Hose Kit
Hydraulic hose kits quoted by crane model, hose length, fitting type and pressure requirement. Hoses are the item on a crane where the machine model tells us the least. What identifies a hose is the inside diameter, the length between fitting faces, the fitting type and thread at each end, the orientation of any bend, and the pressure rating of the circuit it serves. Photograph the failed hose with the layline text if it is still readable and measure it end to end. Two things worth knowing before ordering: boom hoses run inside the sections and are routed to a specific length, so a hose that is merely close will chafe through and fail again; and once one hose in a circuit has failed from age, the rest of that circuit is the same age, which is why we quote them as a set rather than one at a time.
Crane and lifting parts
Zoomlion Crane Slewing Bearing and Slew Reducer
Slewing bearing, slew reducer and slew motor sourcing for Zoomlion truck cranes. The bearing is sized to load moment, not to the tonnage badge: the ZTC250V carries 960 kN.m on the base boom while the ZTC550V carries 2,033 kN.m, so raceway diameter, ball size and bolt count are a full size class apart, and the older QY25V is a different bearing again from the ZTC250V it was replaced by. Zoomlion also builds a heavier 25 t platform, the ZTC251 series, on a different chassis with a different bearing, which is why we ask for the full model code on the nameplate rather than the tonnage. A slewing bearing is a structural safety part and is quoted only against the superstructure serial number. Before ordering one for a crane that slews roughly or with play, measure the tilt clearance with the boom loaded and unloaded and compare it with the wear limit in the manual; a bearing that is still inside the limit usually has a reducer or pinion problem instead, and those are far cheaper to fix.
Crane and lifting parts
Zoomlion Crane Outrigger Cylinder and Seal Kit
Outrigger jack cylinders, horizontal extension cylinders, seal kits and load-holding valves for Zoomlion truck cranes. Zoomlion's QY25V brochure puts the 25 t machine on a 5.15 m by 6.1 m outrigger spread at 29,400 kg in driving condition, 22,900 kg of it on the rear axle group, and it prints separate lifting tables for outriggers fully extended and intermediately extended — so the horizontal beams are worked at two positions and both cylinder types see service. The ZTC250V that replaced it travels at 29,600 kg, and the ZTC550V at 42,000 kg with more than twice the base boom moment, which puts its jack cylinders a bore class above the 25 t cranes. A crane has four vertical jacks and four horizontal extension cylinders, and some builds add a fifth jack under the front of the chassis; front and rear jacks are not always the same part, so name the corner on the enquiry. A leg that sinks slowly under load usually points to the piston seal or the pilot-operated check valve on the cylinder rather than a damaged barrel, so say whether the leg creeps down, will not retract or leaks at the rod before ordering a complete cylinder. Send the rod diameter, the retracted pin-to-pin length and the stamping on the barrel together with the chassis nameplate.
Crane and lifting parts
Zoomlion Crane Boom Wear Pads and Telescoping Seals
Boom slide pads and telescopic cylinder seal kits for Zoomlion truck cranes. On the QY25V the main boom runs from 10.3 m to 38.5 m, and Zoomlion's lifting tables show how that 28.2 m of travel is split: telescopic cylinder I contributes up to 7.1 m and telescopic cylinder II the remaining 21.1 m. Full extension takes 120 s on the brochure figure, and every cycle drags the sections across their pads. That split matters when ordering — the two cylinders are different parts with different seal kits, and a boom that extends unevenly or will not hold its length points to one stage, not both. The ZTC250V, the 25 t crane that followed, is a different boom: its load moment falls from 960 kN·m on the base boom to 672 kN·m fully extended, against 950 and 525 kN·m on the QY25V, so pads and cylinders are not carried across by tonnage. Pads are identified by section and position — upper, lower and side pads on one section are separate parts, and the pads at the head of one section are not the pads at the tail of the section sliding inside it. Tell us which section shows scoring or metal-to-metal marks and measure the remaining pad thickness; for seals, send the stamping on the cylinder and say whether it is cylinder I or II. A boom that creeps in under load is more often the balance valve on the telescopic cylinder than the seals.
Crane and lifting parts
Zoomlion Crane Hoist Wire Rope
Main and auxiliary hoist wire rope for Zoomlion truck cranes, quoted from the rope actually on the drum. Zoomlion's QY25V brochure gives the duty the rope works at but not its diameter: 135 m/min on the main winch and 100 m/min on the auxiliary, both measured at the third layer on the drum, with the 25 t hook block reeved on 8 parts of line at the 10.3 m base boom and down to 3 parts at the full 38.5 m, and the 3 t hook on the 8 m jib running on a single line. That reeving table is why length cannot be guessed from tonnage: full-height work on few parts and short-boom work on eight both have to be covered by the rope on the drum, and the auxiliary rope is a separate length again. Because the brochure does not publish the diameter or the construction, we do not quote from a catalogue figure. Send the tag or certificate from the old reel, or measure the diameter across the crowns of the strands on an unworn section near the drum anchor, and tell us the length you need and whether it is the main or the auxiliary rope. Hoist ropes on telescopic cranes are rotation-resistant constructions, and a same-diameter rope of another construction can let the hook block spin under load. The same rule applies on the ZTC250V and the ZTC550V — the 55 t crane carries more than twice the base boom moment, and its rope, sheaves and hook block are grooved a size up. Replace against the discard criteria in the operator manual, and check the sheave grooves while the rope is off.
Zoomlion QY25V Specifications and Selection Notes
| Rated lifting capacity | 25,000 kg |
|---|---|
| Base boom load moment | 950 kN·m |
| Longest boom load moment | 525 kN·m |
| Factory engine | WP6.240 (Weichai WP6 series) |
| Rated power | 176 kW at 2300 rpm · 900 N·m at 1400–1600 rpm |
| Main boom | 10.3–38.5 m |
| Max main boom lift height | 38.7 m |
| Jib / max lift height | 8 m, 0° / 30° offset / 46.58 m |
| Telescopic cylinder travel | Cylinder I up to 7.1 m, cylinder II up to 21.1 m |
| Boom telescoping out / derricking up time | 120 s / 45 s |
| Outrigger span | 5.15 × 6.1 m (longitudinal × transverse) |
| Slewing speed | 2.6 rpm |
| Main winch line speed | 135 m/min main, 100 m/min auxiliary (third layer) |
| Hook block reeving | 25 t hook: 8 parts of line at base boom, 3 at full extension · 3 t jib hook: single line |
| Travelling weight | 29,400 kg (kerb weight 29,270 kg) |
| Overall dimensions | 12,510 × 2,500 × 3,455 mm |
| Travel speed / gradeability | 72 km/h / 34 % |
| Emission stage | China III (GB 17691-2005) |
| Builds covered | QY25V531.5 (chassis ZLJ5323JQZ) |
How QY25V Differs From the Rest of the Range
- The QY25V and the ZTC250V are both 25 t Zoomlion truck cranes but not the same machine: the QY25V carries 950 kN·m on the base boom and 525 kN·m fully extended with a 38.7 m main boom lift height, while the ZTC250V is published at 960 and 672 kN·m and 35.4 m. Boom, telescopic cylinder and slewing parts are ordered by the full model code, not the tonnage.
- Zoomlion's lifting tables split the 28.2 m of boom travel between telescopic cylinder I (up to 7.1 m) and telescopic cylinder II (up to 21.1 m). They are separate cylinders with separate seal kits — say which stage is drifting or leaking.
- The brochure rates the crane on outriggers fully extended (5.15 × 6.1 m) and intermediately extended, with the 25 t hook reeved on 8 parts of line at base boom and 3 at full extension. Outrigger cylinders, hoist rope and hook block are sized to those figures.
- The engine is a 176 kW WP6.240 from the Weichai WP6 series — a smaller engine family than the WP10 on the 55 t ZTC550V and unrelated to the SDEC SC9D units XCMG fits at 25 t. Do not carry engine part numbers across.
- 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.
Figures taken from Zoomlion's official QY25V531.5 product brochure (Zoomlion Heavy Industry, copyright 2015), an A-grade manufacturer source. The brochure does not publish the hoist rope diameter, the counterweight or the number of boom sections, so those are left out rather than inferred. It describes a China III emission build; later or export builds may differ — confirm against the chassis nameplate and the superstructure serial number before ordering.
Commonly Replaced Parts on Zoomlion QY25V
For Zoomlion QY25V 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.
QY25V Sourcing FAQ
Do you supply spare parts for Zoomlion QY25V?
Yes. Quote-ready QY25V parts currently include Zoomlion Crane Winch Motor, Zoomlion Crane Hydraulic Hose Kit, Zoomlion Crane Slewing Bearing and Slew Reducer and more. Other parts can be confirmed with an OEM part number.
How do I confirm part compatibility for QY25V?
Send the QY25V nameplate photo, engine model and OEM part number. We confirm compatibility before quoting to avoid mismatched shipments.
How are QY25V 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 Zoomlion QY25V?
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.