Home > SP50.10.82D Stationary Concrete Pump — Small Diesel Trailer Pump

SP50.10.82D Stationary Concrete Pump — Small Diesel Trailer Pump

The SP50.10.82D is the compact model in the TRUEMAX A9 stationary concrete pump range — a small diesel concrete pump on a towable trailer, sized for roadwork, bridges and ground-level pours rather than high-rise. It delivers up to 49 m³/h through an S-valve at up to 10 MPa, driven by an 82 HP Cummins engine, and at just 4,509 kg it is the lightest and easiest pump in the range to tow to site and set up. Where a boom pump is too big or not justified, this small concrete pump pushes concrete through a steel-and-rubber pipeline to exactly where it is needed.

The brochure places the SP50.10.82D on expressways, roads, bridges and light-rail work — horizontal and ground-level infrastructure where a compact, mobile diesel pump is the practical choice. For mid- and high-rise pumping, the higher-pressure SP90.18.253D and SP100.23.360D step up. Like every TRUEMAX pump it is built and tested in our own factory in Haining, runs an open hydraulic circuit, and is backed by ISO 9001:2015 and CE certification and service in more than 120 countries.

1. S-valve pumping for C15–C70 — An S-valve and a strong pumping system with optimised mixing blades and small dead angles give clean suction and steady output across a wide mix range, from C15 to C70 concrete.

2. One-button twin piston return — Both pistons return into the water box at the touch of a button, which makes changing the delivery cylinders and wear parts faster.

3. One-button high / low pressure switching — Switch between high and low pressure on the fly to trade output for the pressure you need over longer distances.

4. Hydraulic integration block — A compact valve manifold shortens the oil passages, lowers internal flow resistance and keeps the hydraulic system temperature stable.

5. Dual-drive lubrication — Manual plus fully-enclosed automatic relubrication keeps the moving parts greased and extends service life.

6. Chrome-plated delivery cylinder — The cylinder bore is chrome-plated for a service life above 100,000 m³, with the cutting ring and glass plate made from rigid alloy.

7. Cummins diesel power — An 82 HP air-cooled Cummins engine makes the pump independent of site electricity — ideal for roadworks and remote sites.

8. Intelligent control and protection — Real-time monitoring, self-diagnosis and automatic overload and low-fuel protection guard the engine and oil pump.

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Technial Parameters

Item	Unit	SP50.10.82D
Performance
Max. Theoretical Output (Low / High)	m³/h	49 / 26
Max. Concrete Pressure (Low / High)	MPa	5 / 10
Main Oil Pump	/	Kawasaki
Distribution Valve	/	S Valve
Concrete Cylinder (Bore × Stroke)	mm	Φ180 × 1200
Hopper Size (Capacity × Feeding Height)	m³ × mm	0.5 × 1335
Power System
Engine	/	Cummins
Rated Power	HP	82
Rated Speed	r/min	2200
Hydraulic System
Hydraulic Circuit	/	Open Circuit
Type of Cooling	/	Air Cooling
Overall
Overall Dimensions (L × W × H)	mm	5333 × 1910 × 2606
Total Weight	kg	4509

Dimensions & Working Range

The dimensional drawing shows the overall length, width and height of the towable trailer unit (5,333 × 1,910 × 2,606 mm) so you can confirm transport and set-up footprint on site. At 4,509 kg the SP50.10.82D is light enough to be towed by a standard truck and positioned in tight roadwork and bridge sites.

Applications

The SP50.10.82D is the small diesel concrete pump for horizontal and ground-level infrastructure — the work where reach is across the ground rather than up a tower.

Roads and expressways

As a concrete pump for road construction, the SP50.10.82D feeds a pipeline along the ground to place concrete for pavements, kerbs and roadbeds, with the compact trailer easy to reposition along a linear site.

Bridges and light rail

A practical concrete pump for bridge construction and light-rail work, pumping decks, abutments and foundations through a fixed line where a boom truck cannot easily set up.

Slabs and ground-level pours

Ground slabs, footings and general site pours suit a small, mobile diesel pump that tows in, connects to a line and delivers up to 49 m³/h without the size or cost of a boom pump.

Remote and off-grid sites

Because it runs on its own Cummins diesel engine, this diesel concrete pump machine works on sites with no mains power — useful for rural roads, bridges and dispersed infrastructure.

FAQs

What is the SP

It is a small diesel stationary concrete pump for roads, expressways, bridges, light rail, slabs and general ground-level pours. It delivers up to 49 m³/h at up to 10 MPa, which suits horizontal and lower-level infrastructure rather than high-rise — for tall buildings, the higher-pressure SP90 or SP100 are the right models.

82D used for?

They describe the same machine: the SP50.10.82D is a stationary pump on a towable trailer. It does not drive itself; it is towed to site by a truck, set up at a fixed point, and pumps concrete through a pipeline of steel pipe and rubber hose run to the pour. When fitted with that pipeline it works as a line pump.

Is it a stationary pump or a trailer pump — can it move itself?

Reach depends on pump pressure, mix design, pipeline diameter and bends. As a planning rule, concrete needs roughly 1 bar for every 10 m of vertical lift plus friction loss; at 10 MPa (100 bar) the SP50.10.82D is sized for roads, bridges and lower-level work rather than high-rise. Send us your layout and we will confirm the pipeline and reach.

How far can the SP

The pumping system is designed for mixes from C15 to C70. Confirm the maximum aggregate size in your mix against the Φ180 mm cylinder and pipeline before ordering — share your mix design and we will confirm suitability.

82D pump concrete?

Yes — an 82 HP Cummins diesel engine, air-cooled, so the pump runs independently of site electricity. That makes this diesel concrete pump well suited to roadworks, bridges and remote sites with no reliable power supply.

What concrete grades can it pump?

Wear life depends on volume, mix abrasiveness and pressure. The chrome-plated delivery cylinder is designed for over 100,000 m³, while the cutting ring and glass plate are rigid-alloy consumables checked and replaced periodically. We keep these parts in stock for fast replacement.

Is it diesel?

The standard unit is the trailer-mounted pump with its S-valve, hopper and control system. Delivery, packing and shipping terms (FOB / CIF), pipeline and hose, spare-parts kits, installation and commissioning are quoted to your project. Tell us your destination port and we will confirm lead time.

How often do wear parts need replacing?

What is included, and how is it delivered?

Where the SP50.10.82D fits in the TRUEMAX A9 trailer-pump range

The SP50.10.82D is the compact, entry model in the TRUEMAX A9 stationary concrete pump range, which has three sizes. As a small concrete pump at 49 m³/h and 10 MPa it is built for roads, bridges and light rail; the SP90.18.253D steps up to 90 m³/h and 18 MPa for mid- to high-rise buildings; and the SP100.23.360D reaches 100 m³/h and 23 MPa as the high-pressure model for high-rise concreting. All three share the same S-valve pumping system, open hydraulic circuit and diesel power — the difference is output, pressure and the height they are built to pump to. Choose the SP50.10.82D when the work is horizontal and ground-level rather than vertical.

How a stationary pump works in the concrete chain

A stationary concrete pump is the delivery link in the concrete chain. Concrete is produced at a batching plant, hauled to site by a concrete truck mixer, and then pushed by the pump through a pipeline to the pour. The SP50.10.82D is the pumping unit; the pipeline of steel pipe and rubber hose is configured to your distance. For placing concrete across a high-rise floor, a stationary pump is paired with a concrete placing boom, which distributes what the pump sends up the riser.

Stationary pump vs boom pump

A stationary or trailer pump (called a ground pump on many sites) pushes concrete through a pipeline and is cheaper, lighter and able to reach long horizontal distances or tight access — the right tool for roads, bridges and ground-level work. A truck-mounted boom pump carries its own placing arm and is faster for open, high-volume and elevated pours. Many contractors use a small stationary pump like the SP50.10.82D for infrastructure and a boom pump for building work.